There was no way that human trials would ever be allowed, so the project was officially closed; unofficially of course, I was free to do all the human... trials I like. There were two pages of toxicology tests, so I knew the stuff wouldn't kill anyone and a further two pages on delivery, the best method was being direct injection into the brain, not an option I would consider. The easiest was by ingestion, but that didn't work too well as the bugs in our gut, tended to break down the chemicals. Everyday after school we would go home to pleasure each other. The blowjobs were always great, but I always wanted more, and was constantly imagining about fucking my sister. The only thing holding me back was the risk of getting her pregnant. I knew that Beth would want to have sex if I asked her, but she too would probably be worried about getting pregnant.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Beth's 13th birthday was comming up in a few days, and this gave me. Withdrawing his fingers and bringing them to his lips, he sucks her nectar from his fingers; his eyes darken with desire. All she can do is stare at the beast that has emerged in front of her. Her body heating up, as the lust this man is emanating seemingly envelops her body. “The only question is whether you will continue to resist me right up to the moment that I ram my cock into your tight, slippery cunt, or whether you will beg me to fuck you. Either way, I am going to have you.” His. I brought my left hand up to caress her neck as I kissed her again, and this time her supple lips opened to allow my tongue entry.There was no experimentation in the kiss this time; our lips were melding together as if they had always been together. Deep, soul kissing, thrilling me to the core, I could feel her breath on my neck as we moved from the kiss into a gentle hug. Holding me tight she kissed my neck and ran her hands up and down my back, I bent to kiss her neck at the gentle curve.