All characters in sexual situations are 18 or older. Thanks for reading!
"Eeeeeiiiiiiiieeeeeeeeee." Violet's orgasm was imminent. She bounced on her eighteen-year-old brother's giant dick. She gripped his thighs tightly, riding him reverse. A first for her. She'd never done that with her boyfriend, Chad. With half-seeing eyes, she looked from her little brother's bed across the room. On the floor, two naked women lay spread eagled, cum leaking from their pussies. Violet's own mother was in the middle of the floor with a completely satisfied look on her face. Her friend and neighbor, Rose Perkins was next to her, also on her back, her head resting on Lucy's thigh. "You're... driving me... crazy... Jackie." It wasn't hyperbole, Violet could feel her sharp mind dulling with each successive orgasm.
"I can't... ugh... help wanting your... pussy, Vi." Jackson slapped at his sister's firm ass and watched her cheek shake. "Those... shots... you gave... put me into... overdrive." He could see her whole body lift up off the bed on every up thrust. It was a beautiful sight.
"We're all exhausted, Jackie." Lucy looked up at her grown children from the floor. Her pretty face was speckled with dried cum. "When will you be done?" She wound her fingers in Rose's hair, which was still damp with sweat and other things.
"I'll be good... after one more... time." Jackson was getting close.
"Eeeeerrrrgggggggg." Violet made the most ridiculous noises when she came. She spasmed like being hit with a current of electricity, and all higher functions in her brain turned off completely.
"Oh, God." Lucy looked up in awe. "You're going to break her. You're going to break all of us, Jackie." She looked down past her breasts to her gaping vagina. She gazed over at her married friend, who was babbling to herself as she also looked up at the young people humping.
"So... close..." Jackson's young face strained, cords stuck out on his neck. "In... your... pussy... Vi."
Just as Violet's shredded mind began to reassemble, she felt Jackson's hot spunk inside her. "Oh, nnnnooooooooo." It sent her consciousness ping-ponging off again. She had never had back to back orgasms until she'd turned her brother into a cock monster. And now, it was constant.
~~
"I don't think this is a good idea, Pete." Violet straightened her bedroom/lab/office, moving beakers into even rows on one of the tables that cluttered her room. Her friend, Claire, had confided in one of her roommates, Brie Walter, about Jackson and Serum 42. Brie had told her boyfriend Peter and he'd immediately been thrilled by the idea of Serum 42.
"Claire explained the misfire trial to me. I'm young. It won't happen to me." Peter now sat on Violet's bed, with Brie next to him. His blue eyes were eager as can be.
"We don't really understand the science here." Violet sighed. She was sore and tired. Another test subject would be useful, but she didn't want to turn another man into a monster or a wimp. Those were the only two outcomes so far. But Peter seemed determined. "If you really want to go forward, sign the waiver and we'll give you a micro-dose. I've made it small enough that there shouldn't be any... changes."
"Okay." But Peter frowned at that. He was a big dude, but he wanted to be even bigger. He wanted to break Brie in half. Hopefully, he would eventually be able to convince Violet to give him a full dose. He didn't know who the other test subjects were, but Claire had told Brie about the young man's size and stamina. It sounded perfect. He signed the waiver and handed it back to her. "How are we going to do this?"
"Well, Brie, why don't you wait downstairs? My mom can get you something to drink. There's some magazines on the coffee table in the living room." Violet frowned at the young woman. She was pretty, with a slender build and gorgeous red hair. "I want to observe Peter for about a half hour, and then he's free to go home." Violet had told Jackson to stay out with his friends that afternoon. She didn't want whatever scent he emitted interfering with the test. That and she couldn't trust him in the house with Brie, even with their mom home.
"Sure." Brie smiled. She got up, straightened her dress, and wove her way through the clutter in Violet's room. "Good luck, Pete." She waved goodbye and closed the door behind her.
"Thanks, babe." Peter called after her. He looked over at Violet. "What do you think? She's pretty hot, right?"
"Um..." Violet curled her lip.
"I mean, she doesn't have tits like yours, but she's super limber and loves me so much she'd do anything, if you know what I mean." Peter smiled over at Violet as she readied the syringe.
"I'm sad to say that I totally know what you mean." Violet sighed. She really hoped she'd gotten the dosing right this time. If he turned into a super-virile, super-cocked monster she'd never forgive herself. "Here goes." She stuck the needle into his upper arm with an extra hard jab.
"Ouch." Peter watched the needle dive in, the plunger depress, and then out.
"There, now we check your vitals against the baseline from earlier." Violet roughly put a Band-Aid on the little puncture. She checked his pulse and breathing.
"I feel fine." Peter smiled at Violet. "If you want to explore my body while this takes effect, you can totally touch whatever you want. You know, for science. Brie wouldn't have to know."
"No thanks. Why don't you read something? I'll check on you in a few minutes." Violet turned back to her monitor. Behind her, Peter took out his phone and tapped at it, but Violet had the sense that he was really just checking her out. God, she hoped she'd gotten the dose right.
~~
