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Gaius and his mind control potion	By : ItwasMerlin Category: M through R > Merlin (BBC) > Merlin (BBC) Views: 42545 -:- Recommendations : 3 -:- Currently Reading : 5
Disclaimer: I do not own Merlin or the characters from it , i also make no money from writing this story

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Gaius and his mind control potion part one
Since his discovery Gaius had spent most of his time in his chambers, as soon as Merlin set off on his day and went to work for Arthur, Gaius went about trying to complete the potion remedy he had found a few weeks back, a potion remedy he was desperate to use, especially on one certain female of Camelot…..Morgana Pendragon.
He could remember clearly the moment he had found the book that had the potion remedy in it; he had never been so excited.
A few weeks back…….
Gaius watched as Sir Leon entered his chambers, a large sack over his shoulders.
“Hello there Gaius” The auburn haired knight said as he approached the old physician, placing the large sack onto the table he was working at “This bag here contains numerous books we found in the warlord Helios camp , after we defeated him and his men we ransacked his camp and found these books . They belonged to Helios’s own physician; we thought you would want to look through them”
Gaius gave Leon an approving smile “Thank you Sir Knight, of course ill look through them at once, there’s always more to learn in the art of healing”
Nodding his head, Leon left the physicians chambers and Gaius on his own.
Getting straight to work Gaius searched through the books, finding some interesting healing potions for different skin ailments and few for headaches etc. But when Gaius came to the last book in the sack and noticed what it was he stopped unsure whether to proceed. What Sir Leon hadn’t noticed was they had actually put a book of magic in there, not only that it was an old sorcerers book by the name of Ivor, well if Gaius memory served him right, Ivor was a sorcerer who was killed in the purge but while he didn’t possess powerful magic like Merlin, more at the level of Gaius himself, he was well none for creating potions that could make people do his bidding.
As he skimmed through the different potions, he came across one that instantly caught his fancy. The lust potion, slowly he read through what Ivor had to say on such potion.
This is my favourite remedy of them all, the lust potion, which will need three separate doses for the effects to last for years. The potion will make females who take it fall into a deep trance like state, while under the trance it makes them susceptible to your commands. When they awake after the first dose, and you have implemented the commands properly, they will become instantly attracted to you, and want you but they won’t know why, but this will only last a few days so before two days to be exact pass you must administer another dose of the potion and put them into another trance .
This time while in their second trance state, you will repeat the same commands as the first time before allowing them to awake again. Once they awake they’ll become instantly attracted to you once more, they won’t know why again but just the sight of you will make them wet, but only you the person who is slowly bringing them under their control.
When two more days have passed, it will be time to administer the final dose, much like before they will go into a trance where you will whisper the commands once more. This time when they awake, they will be under your control. While they will be fully aware about what you are telling them to do, and even if they don’t want to carry out your commands they still will, while their mind screams no their bodies will scream yes.
A few warnings to whoever uses my potion. You must follow my guidelines, if you try to command them to do things while only on their first or second dose and not in their trance states, it will not work, for you to have control over their free will you will need to administer three doses for the potion to take full control of them.
Do not attempt to give them a stronger dose to make the process quicker that could cause problems on the precipitant, even death.
While in the trance, do not try and do anything to the drugged party. Too much stimulation could cause them to awake and would ruin everything. You can suggest things they’ll think about, that’s as far as you can go
While in the trance, stick to the command you are under my control, you will do as I say. It is the best command to give them.
The biggest warning I give to you, when they are under your control fully, your first command should always be, you shall tell no one of what I command you to do. That way, while they will want to tell people what you’re making them do; they won’t be able to as you will have them under your control.
Gaius sat in his chair shocked at what he had found, while reading this his thoughts had drifted to one person, the Lady Morgana. He knew it was wrong, but finding this potion had opened up possibility’s he would never have in his old age or probably ever, and maybe make a dream of his come true , a dream he had locked away in his own thoughts for when he was alone , the dream of fucking the Lady Morgana .
He knew he shouldn’t have been thinking about it, he was three times her age, and she looked to him like a father of sorts. But ever since she had come of age, he had dreamt of her riding his old cock , he had dreamt of her kneeling at his feet , her ruby red lips planted around his large old member , gagging on his cock until he would pull out and cum all over her beautiful face.
He also wanted to dominate her as well, she was a strong woman and the thought of taking her whenever he pleased, and wherever he pleased made him harder than he had ever been. Fantasies of fucking her over his desk, fucking her massive breasts until they were sore, hell he even fantasized about her riding him while he sat on Uthers throne …… Could this potion make his fantasies come true?
A small part in the back of his mind was screaming at him that it was wrong, it was sick, but another part was telling him he wouldn’t be able to go on seeing the Lady Morgana walking around the castle, in her tight dresses knowing that back in his own chambers he had a way of making her his.
Present day…….
It had taken Gaius a few weeks to gather the strange herbs and such that went into this potion; well it had taken Merlin a few weeks anyway. On purpose he had made him find a vast amount of these herbs, saying they would come in handy for healing.
Today was the day though that he had everything he needed, and he had gotten to work brewing the potion instantly, in fact he had made the same potion over and over again all day before storing the vials away in a floorboard he kept things he wanted no one else to know about, not even Merlin.
His excitement grew as the day went by, as the hours passed getting closer and closer to the time when Morgana would request his potion to help her sleep ….. It was then he would give her his new potion instead, when he would administer the first dose. But as evening came and the sky turned from day to night worry started to take over the old man, he started to question himself.
What if this potion doesn’t work? What if she awakes? What if she doesn’t become under my control and tells Uther? I could be killed; she is the king’s ward after all …… Maybe I need to test it out on someone else first.
A knock at his chamber doors disrupted his thinking.
“Enter” Gaius said as he continued to mix more of the potion. His eyes glanced over at the door, and as if fate had been listening to his questions, in walked the perfect candidate……..Guinevere, Morganas maid.
“I’m sorry to disturb you at this time Gaius” Gwen said giving the old man and good friend an apologetic smile.
“Nonsense my dear” Gaius replied, stopping what he was doing and putting his full attention onto the handmaiden. While Morgana had always been his one dream fantasy, he had to admit he had sometimes had dirty thoughts towards Gwen as well, he could tell under that unflattering maids dress was a good body, not only that the cleavage some of the dresses showed made him want to bury his face in large pert breasts . Her curly black hair and caramel skin made her an exotic beauty as well, but could he really do this to his friend? Realising she had been talking while he was deep in thought he forced himself to pay attention to what she was saying, not what lied under her dress.
“I’m sorry my child” Gaius said holding his hand up to stop her speaking “could you repeat that, in my old age my mind sometimes wanders”
Nodding her head Gwen started again “I was only wondering Gaius if you had something that could ease a headache, I know it’s of a late hour but I need my sleep if I’m going to assist the lady Morgana tomorrow to the best of my abilities”
“Of course Gwen, it’s of no trouble. I’m actually heading down past your hut anyway; I have a few night deliveries to make, so if you go back home I shall be along within the hour”
Gwen smiled at Gaius “thank you”. After thanking the old man she turned back around and headed out of the physician chambers and back to the hut that she now lived in alone, after the death of her father.
Gaius watched the pretty maid walk out the door, as she did he caught the unintentional sway in her hips, he then turned back around to his work. He had a decision to make, did he take Gwen a medicine for her headache, or did he take her the mind control potion? When he weighed the pros and cons in his mind, the pro of sliding his ageing cock into her tight young cunt made the decision for him. While it wasn’t Morgana, well not yet anyway, Gwen would be a good substitute and if it didn’t work no one would believe the accusations of a maid. He knew she was his friend, but his mind was slowly becoming obsessed with one thing, making Morgana his and to do that he needed to make sure his plan worked to perfection, even if it meant using Gwen in the process.
Outside Gwen’s hut…..
Gaius knocked on Gwen’s door with the mind control potion in hand. He watched as Gwen opened the door, wearing what he assumed was her bed wear, a thin white sleeping dress.
“Thank you for coming Gaius” Gwen said with a smile waving him into her home.
Gaius looked around taking in his surroundings, it wasn’t much just the basic cooking utensils and a small bed but it was more than some maids and servants got. He then turned his attention back to the smiling Gwen; he could see her body more clearly in the thin knight dress she was wearing, her curves more visible and her nipples where poking out due to the coldness of the hut.
Just looking at her brought blood rushing to Gaius cock, the ache under his cloak was something he knew he would have to live with for a while but he knew he had made a good choice for his test subject.
“Here’s the potion for your headache Gwen” Gaius said handing over the vial filled with purple liquid “It’s a new mixture I made, your to take one vial once every two days, it will keep the headaches a way for a while my dear, it also can make you drowsy so I will always drop off your next batch in the evenings when your due your next dose”
Gwen nodded as she took the vial from Gaius hands; she then peered up at him from her brown eyes while pulling the top of the vial off, before downing the purple liquid and handing the glass vial back to Gaius.
“Thank you Gaius, the pain was getting unbearable”
“ It’s no worry my child” Gaius replied as he watched Gwen’s eyes droop a little , the potion starting to take effect on the maid “ I told you it can make you a little drowsy , here let me help you” Gaius then led Gwen to her small bed , sitting her down on the edge of it “ Is that better?” he asked
Gwen nodded as she tried to keep her eyes open; in the end she couldn’t fight it as the potion took full effect as she went into a trance like state. Suddenly her eyes reopened, something that made Gaius jump a little, but when he looked at her vacant eyes, he realised she was fully under. It was time to start phase one.
Leaning his mouth close to her ear, he started to whisper the commands suggested in the book.
“You are under my control; you will do as I say”
Gaius continued to whisper the command over and over in her ear, until slowly Gwen closed her eyes once more and flopped back onto the bed falling into a deep sleep.
While Gaius would of wanted nothing more than to take her then while she slept , he knew having her awake under his control was better , so the old man left her to sleep and returned to his chambers .
Two days later ………..
Gaius smiled to himself as he walked through Camelot’s town on the way to Gwen’s hut, he could tell the first dose had worked and she had found him attractive. He had seen her looking at him whenever there was a feast, or for no reason wanting to spend more time in his chambers whenever she had a break from duty. While it wasn’t Morgana, having a young woman who was barely in her twenties ogling you all the time made him feel good, even if it was the effects of a potion.
He knew after this next dose, just the sight of him would turn Guinevere on and he couldn’t wait to see that.
Much like two nights ago, Gaius entered Gwen’s hut potion in hand, and much like two nights ago Gwen greeted him with a smile, wearing only the same thin White night dress as before, the image sending blood to his cock once more. This time though he could tell her eyes where lingering on him a little longer, he could also see the confusion in her eyes, obviously she had no idea why she was feeling the sudden attraction to the old perverted physician.
When Gwen drank the potion, taking in her second dose she again became drowsy, and just like before Gaius led her to the edge of her bed, waiting until she reopened her eyes in the manner that indicated she was once more under a trance.
As soon as Gwen reopened her eyes, her look vacant, Gaius started to whisper the commands once more into her ear.
“You are under my control; you will do as I say”
Gaius repeated it over and over, but before she slumped into a deep sleep he added one more thing onto the end.
“You are under my control; you will do as I say……. For the next two days whenever you see me, you will consistently think about what is under my robe”
He continued whispering that until like two nights ago, Gwen slumped back onto the bed in a deep sleep.
“Soon my child, soon” Gaius whispered as he took Gwen’s form in once more before leaving for his chambers.
Two nights later…..
Gaius smiled with glee, finally he was onto the final dosage to see if his plan he would use on Morgana, worked on Gwen. He was also glad he would finally be able to release the pent up sexual frustration he felt, while he had been masturbating religious lately his own hands just wasn’t enough.
As he reached the maids door once more, he couldn’t help but think back on the last two days. The poor girl was obviously so confused as to what she was feeling whenever she saw him, the second dose of the potion made the recipient wet and turned on whenever they saw the person who was slowly taking over their mind . He could tell she was feeling the effects as whenever he entered the room she would make excuses to leave , and whenever she couldn’t leave Gaius would on purpose stand right next to her , making her fidget and bite her lip , he even saw her cross her legs awkwardly obviously trying to scratch a certain itch . He had also noticed her glancing at his crotch whenever she could; obviously the command from a few nights ago had worked.
Much like the last two visits the same thing happened, Gwen opened the door welcoming Gaius in wearing the same white night dress. Only this time she seemed nervous in his presence, and Gaius could also smell the divine aroma of her arousal in the air, something he couldn’t wait to taste but he could be patient once more.
He watched as she drank her final dose of potion, and he again led her to the edge of her bed. When she entered the trance and the effects of the potion took over once more he started whispering the commands for the final time.
“You are under my control, you will do as I say” he kept repeating over and over, until again she fell into a deep sleep on the bed.
Before he got up to leave, Gaius slowly leaned his face over where Gwen’s cunt would be underneath her sleep dress. Taking in a large sniff, Gaius savoured the smell of her young pussy, the aroma so sweet, causing his cock to go rock hard. Slowly he reached out his hand and gently stroked the black curls that adorned Gwen’s head, he watched as she sighed happily in her slumber.
“Tomorrow your mine child” Gaius said before getting to his feet and returning to his chambers, he would be back the next evening in hope his plan worked before he tried it on Morgana.
Outside Gwen’s hut the next evening….
Things had been back to normal the next day, Gwen was back to acting like she once did around him, not like the last two days where she had been a quivering horny mess. Once evening came around though, it was finally time to see if the potion from Ivor the sorcerer’s book had worked and weather he now had control over Guinevere.
Gaius took in a deep breath as he knocked on Gwen’s door, when she opened it in the same white night dress, a small welcoming smile on her face the old man couldn’t help but fidget nervously where he stood.
“Hello their Gaius, what can I do for you this evening?” Guinevere asked with a smile for her old friend, noticing he looked a little off she pressed on “are you alright Gaius? Do you want to come in and sit down for a second? Have something to drink?”
Gaius just nodded as he followed Gwen into her home, his nerves getting the better of him as he sat on the edge of her small bed; he watched as she got him a cup of water and passed it to him before sitting down next to him, her brown eyes watching him, waiting for him to elaborate as to why he called so late at her door.
Taking in her beautiful form, Gaius knew he had to go ahead with the plan, quickly he thought back to what Ivor had said about what his first command should be.
The biggest warning I give to you, when they are under your control fully, your first command should always be, you shall tell no one of what I command you to do. That way, while they will want to tell people what you’re making them do; they won’t be able to as you will have them under your control.
“Gwen” Gaius said softly making her look at him directly in the eyes “You shall tell no one of what I command you to do….. Do you understand?”
Gwen nodded wordlessly at Gaius; confusion was evident in her eyes.
“Lock the door Gwen and then come and sit back down, but this time on my lap” Gaius commanded
Gwen looked shocked at the request, but couldn’t stop herself from getting up off the edge of the bed and walking over to her front door, bolting it shut; she then slowly walked back to Gaius planting herself on the old man’s lap.
Gaius smiled from behind Gwen as he felt her nice and firm bum nestle into him, her bum right on top of his already throbbing cock.
“How are you doing this Gaius” Gwen stuttered out, unsure how a man she thought was her friend had control over her movements.
Gaius knew they would be fully aware; one thing he didn’t want was to hear was her cries of stop so he made his next command
“You will not speak unless I ask you a question Gwen do you understand?”
Gwen slowly nodded, unable to stop herself.
“Good” Gaius whispered in her ear “know I’m going to ask you a few question and I want the truth okay? And if while I asked these questions I feel like touching you, you won’t mind will you?”
Gwen nodded once more.
“Are you a virgin Gwen?” Gaius asked as he slowly reached his hands around her body placing them on her stomach, stroking her belly.
“Yes” Gwen choked, tears in her eyes.
Slowly Gaius drifted his old wrinkly hands up her body until he reached her pert breasts; he then rubbed her small nipples from outside the thin night dress she was wearing until they were nice and erect.
“Have you ever sucked a cock before Gwen?” Gaius questioned his lust evident. He couldn’t believe this was working, he didn’t think he had ever been so turned on before, the idea of fucking this tight young body was now his fuelling his every move.
“No” Gwen replied, her body shaking with fear.
Gaius then slowly drifted his hands to her shoulders, and with his fingers his slid the top of her knight dress down revealing her beautiful, silky caramel coloured shoulders, he then slid her arms out of the dress reviling her stunning erect breasts to the cold air of her hut.
Gwen gasped aloud as her top half of her body was now naked; she was still unable to say anything as she sat firmly in the old perverted physicians lap.
The old man then cupped her know nude breasts, squeezing them before taking the tips of her nipples in his fingers, pulling at them.
Gwen tried to hold in the moan of pleasure from the old man’s molestation but couldn’t stop herself.
“It’s okay to like it my dear” Gaius whispered softly in her ear “do you like it when I play with these breasts my pert little whore”
Gwen wanted to shout no, this was disgusting and wrong but she had to tell the truth, she couldn’t deny that she liked the feeling of his hands on her breasts.
When she nodded Gaius smiled, at least the girl would get some enjoyment out of it.
Gaius then place his lips next to her ear “know if I tell you to do something, you’ll always obey me won’t you?” Gaius asked when she nodded unable to deny him due to the control he know had over her he continued questioning her while his hands worked on her tits “ say I wanted you to suck my cock in front of the whole courtyard , what would you do?”
“Suck your cock” Gwen replied not able to say different, tears running down her face.
“Good girl, now Gwen I want you to stand up for a second” Gaius said as the half nude Gwen did as he said and got to her feet , when she turned and looked at him he got his first view of her breasts from the front , he definitely wasn’t disappointed . He then stood himself and slowly took of his own clothes, leaving him standing naked in front of a frightened looking Gwen, his nine inch and very thick penis standing to attention.
Gwen took in the old man who had somehow took control of her and wanted to gag, his naked wrinkled old body , along with his sagging balls scaring her , she had never seen a man naked before but she couldn’t believe Gaius a man ten years older than her own grandfather was her first. When she looked down at Gaius obscenely large cock, she became even more frightened. Where the hell had the kind hearted man she once called a friend gone to?
“Pull off the rest of your night dress off Gwen, show me that little cunt of yours” Gaius said licking his lips in anticipation, he watched as the handmaiden pulled off the rest of her thin white night dress with shaky hands, showing her full naked body off to the old man, including her young tight pussy that was covered in small black curls.
The old man sat their stroking his cock as he took her body in; he then made his next command.
“Come here a knell in between my legs my dear” Gaius said coaxing her with his finger.
Unable to stop her body’s movements, the now naked Gwen slowly walked towards Gaius kneeling in front of him, her face level with his massive old cock.
“Now my child put those lovely lips around my cock, and start sucking it until I say otherwise” Gaius then placed his hands on the edge of the bed as he watched Guinevere reluctantly lower her mouth onto his cock .
Gaius was in heaven as the young maids mouth bobbed up and down on his cock, she could barely take more than three inches in being it was her first time giving head, but she would have plenty of practice he would make sure of that, by the time he was through she would have her face buried in his old grey pubes sucking it like a pro.
Slowly he grabbed the back of her head pushing her mouth down on his impressive member until she started to gag, the feeling of her young mouth almost too much to bear for the old man. He then let go of her head to let her catch her breath, before commanding her once more.
“Lick my balls now my little whore, and while you do it I want you to play with that little cunt of yours”
Gaius sat back and groaned as Gwen took one of his old wrinkled balls in her mouth, while she started to play with her hairy tight sex.
Gwen couldn’t believe she had just put Gaius penis in her mouth, to top it off she know had one of his wrinkled old balls in her mouth as well, the love she once felt for the kind old man was now pure hatred but when he had told her to play with herself, she couldn’t help but moan out in pleasure as her own fingers plummeted in and out of her sex making her dripping wet.
Feeling close to Cumming, Gaius ordered her to stop. There was no way the first time Gwen caused him to cum, it would be with her mouth, that sweet little pussy would be the reason. So commanding her to stand up , he then ordered her to get onto the bed on her hands and knees facing the wall , while he wanted to fuck her desperately he didn’t want to see the shame on her face as he did .
When Gwen was positioned Gaius got up behind her, a finger instantly sliding into her hot, wet twat.
“Looks like your enjoying yourself then” Gaius said with a smirk as he pulled his finger out and placed it in his mouth, the taste of her pussy sweet and bitter at the same time. He then grabbed his throbbing cock and lined it up at her tight entrance, he knew this would hurt her but she would grow to love it “know this will sting for a second, but I’m going to fuck you now and you’re going to let me understand?”
Gwen let out a sob as she nodded unable to say no to the old man, she then felt as his massive cock slid into her cunt. The pain was unbearable as he ripped into her with no remorse, taking her virginity so unceremoniously. She sobbed and cried as his old cock pumped in and out of her, the pain searing, but after five minutes or so of her cunt being pummelled pain started to turn into pleasure, she tried to stifle the moans as his old balls slapped against her sensitive pussy but she couldn’t help it.
Hearing her moans of pleasure Gaius started to pick up the pace the best his old body could, he couldn’t believe how good her cunt felt around him, her soaking wet sex clenching around his cock. As he continued to pump in and out of her, he listened on as she moaned louder and louder.
“Tell me how this old cock feels inside of you” Gaius groaned as he pulled out of her pussy and slid back in.
“ IT FEELS SO GOOD” Gwen shouted unable to help herself as Gaius entered her once more , she could feel her climax growing inside of her as he did .
Sensing she was close, Gaius continued to pump in and out while one of his hands reached under her, finding her swollen nub.
As he rubbed away at her clit while fucking her Gaius continued to question the maid he had writhing underneath him, the sound of her soaking wet cunt being fucked hard echoing through the hut.
“I’m going to fuck you whenever and wherever I feel like and you’re going to love it aren’t you Gwen”
“Y-Yes” Gwen moaned barely able to talk as she built closer and closer to climaxing
“Cum you little whore, moan my name when you do” The old man didn’t stop, instead he grabbed onto Gwen’s ass roughly, fucking her as he did but with even more force. He was surprised he had lasted so long, but this was a feeling he will love getting used to.
Gaius continued to thrust into Gwen, until the maid couldn’t take any more and exploded other the edge.
“GAIUS” Gwen cried out in ecstasy as her was clenched around him causing the old man to fall other the edge as well, his seed unloading in her abused cunt , her walls milking him dry .
Gaius pulled out his breathing heavy and his cock spent and already shrinking. He then looked to Gwen, noticing the shame on her face, probably the mix between being raped and the enjoyment she had out of it, he decided not to stay any longer so he quickly pulled his clothes and headed for the door. Before he did though he decided for one more command, after all he would probably be hard again in the morning just thinking about what had happened this evening.
Not looking at her, instead looking at the door he spoke “Early tomorrow Uther has a council meeting, which Morgana has to attend but no servants are aloud due to the nature of the meeting, at that time Merlin will be out picking herbs for me” he then paused his breathing still heavy from earlier events “ what I want you to do is go into Morganas chambers and find that low cut red dress of hers , I want you to put it on and head to my chambers after do you understand?”
As he opened the door he heard a muffled yes in reply, and with that he left the hut and headed back to his chambers very happy with how his plan had turned out.
The next morning……
Gaius sat at his table the next morning with a smile on his face, his plan had worked and tonight he would get to work on Morgana, his ultimate fantasy. He let out a moan at the thought of Morgana, and a moan of pleasure at the sensation of Guinevere’s lovely tongue that was currently licking from the bottom of his shaft up to the head of his cock.
Gaius looked down under the table with a smile on his face as he watched his slave Gwen, dressed in one of Morganas dresses bobbing her mouth up and down on his member . It may not be Morgana yet, but Gwen will fill the void for the time being, he would start on Morgana tonight.
That’s what Gaius thought though, although he wouldn’t be able to start his plan as Camelot was overrun that day by the beautiful blonde haired sorceress Morgause and her blood guard. He along with many others, including the Lady Morgana and his slave Gwen where thrown into the dungeons, awaiting the fate Morgause chose for them.
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Gaius and his mind control potion