I had been working on fertility drugs for ten years. I thought I had a break through when I tested my new compounds on the rats at the lab. At first I couldn’t tell any difference in behavior but within minutes, the females began acting aggressively with the males. Humping, clawing, even biting. The males mated as much as they could but the females didn’t seem satisfied. I had to separate them for fear of her fucking him to death.
It appears as if I had created a legit arousal enhancer. By mistake of course. Pharmaceuticals had created a multitude of drugs over the decades with one intended purpose that were used for other means. Percocets were originally created to be a cough suppressant, now its used and abused with nary a chest congestion.
I quickly cleaned up my work station with this new knowledge and wrote my findings in my journal. It was the end of the day and I just wanted to go home. This was a break through in one field but just another failure for my own. One the drive home I sighed feeling like I was spinning my wheels.
I pulled into my driveway and parked outside the garage. I got out of my car and walked inside my home. “Hello?” Silence greeted me. Sasha, my younger sister, was staying with me for the week. She’s going through a divorce and needed a place to crash. Devoting my life to my work meant that I never married but I have enough money to give to all my nieces and nephews when I die. My phone vibrated, a notification from her came through.
– On my way home now, are you making dinner or should I get some take out? –
I couldn’t stomach another greasy fast food place.
– I’m cooking! Dinner will be ready in 20 –
I made my way to the kitchen shaking my head and got out the romaine lettuce, cucumbers, carrots, and everything else for a hardy salad. By the time Sasha came through the door I had layered the salami, ham, and cheeses over the vegetables and was making a homemade dressing. “No greasy foods tonight!” I said to her and licked the bit of lemon juice off my thumb. “Sure…whatever you say. I’m just famished!” She said making a b-line towards the food.
I paused. It was bitter and not sweet or tart. I looked at my hands with alarm and thought back over my steps in cleaning up my lab station before leaving work. I couldn’t remember spilling anything on myself or my work station. I turned to the sink and furiously washed my hands. Before I could think to warn Sasha, she had taken a bowl off the kitchen island and already filled it with salad. She had poured the dressing over it as well. By the time I turned back to her, she was taking a bite, dressing glistening off of her lips. I watched holding my breath wondering if what I thought was happening…was indeed happening.
She moaned and her eyes rolled in her head, “This is good…I always think I hate salads until I eat the ones you make. So good, Dan, really.” She said. I watched her chew, her plump lips working as her jaw crunched the cold, crisp lettuce.
Why the fuck was I thinking of her plump lips?
I closed my eyes and shook my head. ‘Fuck’ I muttered to myself.
“What is it?” she asked. “Dan? what’s wrong?” She said coming over and placing her hand on my shoulder. I opened my eyes and looked at her, “I think I fucked up.” I said and knew I had. I could feel my balls, my cock, the muscles behind them that connected to my guts, thickening and becoming bigger. An uncomfortable bulging but no hard on, just flesh and muscle and meat growing in my pants. I groaned and couldn’t help touching myself as I cradled my cock and balls.
“Fucked up how? Did you rack yourself?” She said confused, watching me double over slowly. Her hand gently squeezed my shoulder and then rubbed it, drifting to my back and the back of my neck. He motion at first empathetic and then something else. “Dan?” She said again and then sighed.
I knew she was feeling it too. She slightly moved her hips as she felt herself reacting to the serum as well. I looked up at her as she let go of me and groped her chest. Her humble B cup breasts swelled into Ds. Her top barely containing her flesh. “Oh gawd.” She moaned in pain and tried to pull the top off before her chest was trapped but instead they ripped the cheap tank top. Her tits spilled over her cups and her nipples poked at attention, hard and seeking stimulation. “Oh shit…”She gasped and unclipped her bra, freeing them. “what’s happening?” She shouted between her heavy breaths.
“I think I accidentally dosed us with a drug from the lab…”I tried to explain but my cock felt like it was going to burst. Like her tits, my clothes didn’t seem to want to contain my manhood anymore. I unzipped and unbuttoned my fly. I shimmied out of my pants and boxers quickly and stood up, my fat cock flopping out of the elastic as it was freed and hung like a third arm from my pelvis. My balls, engorged and heavy with cum. I wasn’t hard but I had never seen my cock like this before. It was easily the size of a coke bottle and ten inches long, limp.
Sasha, overcome by the effects of the drug, gasped and reached out cradling it in her hands, “Oh my gawd, Daniel…” her touch sent electricity through me. My meat twitched and began to stand to greet her. She held it in both hands while giving short breathy chuffs of laughter in amazement. “Fuck….my pussy is on fire!” She moaned finally looking me in the eye. It was like all sense in her was gone. I had seen that look before in women but never from my sister. She wanted to fuck. And she wanted to fuck now.
I found myself overcome as well. Whatever was on my hands had also been in dressing, on the lettuce, all over the food. She had ingested maybe more than I had with the little bit that was on my thumb. But if just a few milliliters had done this to us, what would a teaspoon do to a person? Images flashed in my mind of hulking sex zombies as I suddenly came to.
Sasha and I were tangled on the floor, she was ripping my shirt off of me like an animal while I tugged her pants and panties down to discover her pristine, hairless, and completely soaked cunt. She attacked my mouth and wrapped her legs around my waist. Her hot, wet slit almost grabbed my dick and swallowed it by itself. Suddenly I was balls deep in my sister while she was invading my mouth with her tongue. Her engorged tits pressed against me, leaked creamy white milk down our bodies. She groaned as all my girth stretched her, I could feel my head slamming into her cervix but she didn’t seem to care. She rolled until she was on top and pinned my arms down with her hands by the wrists. Her fat tits dangling over my face, dripping into my mouth and onto my neck and face. She slammed her pussy down on my rod, hard. The sound of wet skin slapping against wet skin filled the kitchen and echoed off the tile.
“FUCK!” She shouted. I sucked her large nipple with my mouth, greedily gulping her milk. She moved her body on mine like starving dog greedily devours a steak. “Oh fuck….what are we doing?!” she shouted but didn’t stop. It was like she was aware of how fucked up this was but couldn’t control herself. I couldn’t blame her. If she didn’t fuck me, I would have fucked her. Rape or not, I was going to be coating my cock in her cum tonight.
She slammed down on my again and again, her hair falling messily around her face as she gasped and moaned. She sped up as she began to climax and let go of my wrists, she sat straight up and groped her own chest, pinching her nipples as she shouted and came on me. I held her hips as trails of milk descended from her breasts and onto her belly until they pooled between our bodies as she straddled me.
She gasped harshly and her eyes shot open, as she stared into mine. A single tear fell from her eye. “Oh….fuck…..” she gasped. I wasn’t sure if that was ecstasy or regret so I held her by the hips and maneuvered her onto her back, she wrapped her arms around my shoulders and held on as I pinned her to the ground and began slamming my meaty fuck stick into her wet hole. Her tits bounced up and down as I rocked her body, “Oh gawd…..no! Oh fuck!!” She screamed as my balls slapped her ass cheeks, clapping, rooting for me to cum. “Yes! Of fuck yes!” I shouted back and bit her neck. I I held onto her like a humping post, her legs wrapped around my waist locked at the ankles as she cried out, moaning conflicted thoughts.
I pushed inside of her as deep as I could as I felt my cock pulse and twitch with eruptions of hot thick ropey cum. Her nails dug into my back as I split her open and filled her.
When it was all over, we laid there intertwined in a pool of our own fluids. a solid twelve ounces of cum spilled out of her when I pulled out. Her tits leaked without stimulation. She cried and laughed at the same time. “That was the best sex I’ve ever had….and it was from my own brother.”
I laid on my back panting, bewildered at what had just happened. Did we have control? Was this a choice or were we powerless? I thought of the rats. I thought of the male rat who had tried to keep up but couldn’t. I turned and looked at the tear streaked face of my sister who was licking her lips and reaching for my cock, spent and dripping. “Oh fuck Dan….can you do it again? For me?” she begged and began stroking my veiny dick.
I was worried I wouldn’t be able to satisfy her…
Source: reddit.com/r/eroticliterature/comments/sva16f/a_new_stimulant_mf_missionary_hyperspermia