Next couple of days

The serum was still largely not fully understood by our brilliant scientist. Mundo knew that anyone he injects with it will have their mind trampled and overrun with thoughts about him and only him. It brings that person under complete control and they want to do everything to satisfy him.

And such was his harem potion made but as the next couple of days passed he began to notice other symptoms and signs this serum had. For example, increased libido and thirst for sex. He was 100 % sure of that since for six days straight, neither one has left the hideout as they just kept fucking and fucking. They wanted to do different positions, anal, both holes at once which they used a strap on for. Mundo even watched for two hours as the girls couldn't separate from each other, tribbing or fucking each other with dildos of various sizes. But he was not complaining at all. In fact, he loved it.

Well who wouldn't love two personal sluts and in addition to that they are one of the most beautiful women he could meet. He relished in the fact that they were his and just his and he enjoyed every second of sex they had.

Over the week there were multiple instances where they begged him to fuck their asses. Placing their heads on the ground and thrusting their asses up as they screamed his name once he started demolishing their assholes. Or when Caitlyn fell asleep with his dick inside her mouth and right when she woke up she immediately continued with pleasuring him. But even as they loved all sex and wanted to experience hundred times more of it, they still had their preferences.

Caitlyn loved to be fucked as deeply as possible. Another thing she very much enjoyed was watching other people fuck. For now it was just the three of them but every time Mundo fucked Vi, doesn't matter in what way, she always furiously masturbated to it. She enjoyed watching his cock pump Vi's holes and licking the mess afterwards was just the cherry on top. But there was one new kink that she discovered about herself. She. Loved. Anal. Ever since she heard Vi beg their master for a rough ass fuck, she yearned to try it. Her face was as close as it was possible when she watched them with absolute bliss as her lover's asshole spread around the girth of his cock. And as he came inside of her multiple times, seeing the cum flow out of her gaping back door, she could not resist. Caitlyn got into the same position as Vi, thrusting her ass up and spreading her ass cheeks as he slowly entered the puckered little butthole and well, the only way I can describe it is that it was love at first... thrust I guess ?

Ever since then, she got much better at handling such a big rod and now she is capable of taking a rough ass fuck or let the two DP her for hours, letting Vi have the control of her little butt. And well if she feels like not sharing, she just gives in to her master and allows him to do whatever he wishes with her.

As for Vi the serum unlocked long lost memories that were awaken during the first sex. Her time in prison and some time afterwards was filled with rough sex that she remembered from before. But now those memories were something more. A lust. The thought of being completely submitted to someone turned her on so much that even just the thought could make her cum. Whether it was her master who used her body in ways she could never imagine or her little cupcake who rode her face and fucked her with all kinds of dildos and strap ons. And of course the love for Caitlyn never diminished. It hasn't for either one of them. These feelings were only much stronger now and enhanced with vigorous feelings of arousal and pure sex that they of course wanted to share with their master and whoever else he would order them to.

But a week was almost behind them. In the early morning hours, as Mundo was checking his notes( which were really just scribbles but trust me he understands them ), Caitlyn was still asleep next to him. Laying on her side with her white ass painted even whiter as it was fully covered from his thick ropes of semen, she gently breathed as she was getting her very well deserved rest. A freshly woken up Vi on the other hand was already between his legs, giving him a very slow and sensual blowjob as she dragged her mouth across the whole girth. Her puppy eyes were looking into his face as all she thought about was to give her master all the pleasure he wants. And she did not want to disappoint. The radio was on and as the morning tunes were playing, they were soon interrupted by a morning news program from Piltover.

" Good morning to all of you, people of both Zaun and Piltover. We always give you the most early updates about everything that happens in our city and we deeply apologize for jumping in so soon in the morning. Among sales from the various stores in the market such as Griddy's all repairing tools or the freshly baked goods from the Hex foods, we also have updates on new discoveries of potentially new ways to enhance our hextech creations and also new reports on the wild fights and robberies happening across both cities. Ever since last week when the police had to shut down the illegal gathering in the streets of Zaun, some of the more as I would call them "higher ups" of local criminal underworld have gone more violent. Attacking the residential buildings with pranks and explosions, the spray marks and drawings of a known criminal known as Jinx have become more frequent and much more disruptive. And in the deep alleys of Zaun, one of the chem barons known as Renata Glasc has been taking over territories of other barons which led to open fights and skirmishes between the followers of these crime leaders. The police have had trouble with loosing many of their top officers due to injuries and other reasons and as such are spread very thin in trying to undo either one of those problems. Let's hope that soon these troubles will go away on their own but stay safe people because I wouldn't want to... jinx it. Hahaha, for Piltover news I am yours truly John Jngdif and you will hear me all again soon! "

As Mundo listened to the report, he recognized both of those names. Jinx was a known criminal and he knew Renata personally. Maybe it was time to get new subjects for his serum. But as those thoughts ran through his head, an intense feeling of pleasure began to drive him over the edge as Vi let herself **** on his dick, deepthroating herself in an effort to make him cum. She was doing so with no hands as one was between her own legs rubbing her pussy and the other one was groping her own breasts. Mundo groaned as he placed both hands on the side of her head and kept her there, thrusting into her not more than three times before cumming straight down her throat and into her belly. As the warm cum shot past her throat, Vi's eyes rolled back and her pink sweat filled hair was swinging in front of her forehead, she groaned as each shot released more and more cum before she almost limply fell off of his dick. She recovered in rapid breaths until she was finally back to her senses, licking the remaining cum.

" Thank you master, it tastes so good. " She thanked him and swallowed what remained before she fell asleep as well between his legs. Satisfied Mundo also leaned his head back into the pillow and let a quick nap take over him as he wondered which one would become his test subject first...