Science dictated that procreating with the original donors to the new species was not physically possible so the only way the line could be improved a...d expanded would be with a concerted effort at coupling by all of the survivors. Fortunately there were nine females and three males, so the production of nine Hybrid second generation subjects was the optimal result.These second generation Hybrids were placed into growth acceleration pods and within six months, Six healthy females and two males. I took a handful of them and tried in vain to clench some between the cheeks of my arse.This was not doing the trick as some of the gel had found it's way up the chutney channel and it felt like the space shuttle was running it's engines behind me.This was probably and hopefully the only time in my life I was going to wish there was a gay snowman in the kitchen which should give you some idea of the depths I was willing to sink to in order to ease the pain.The only solution my pain crazed mind. I went to investigate and what I saw was unbelievable. My 16-year-old sister Amy was masturbating! She had her legs spread wide across the bed, her head was thrown back, and her hand was forcing the toy in and out of her pussy with remarkable speed. Her nipples were extremely hard and were as big as dimes. I tried to look away but I couldn't. I stood there for maybe five minutes and her hand hadn't even slowed down or stopped. It only increased its pace, making my sister thrash around on her. Collect the forms and I'll be back in 20 minutes or so." Ok Mr. Williams." Amy looked a little down. I pulled her in for a quick kiss and felt up her ass."I'm counting on you, Amy."Her face brightened and she said, "You can count on me, Mr. Williams."I led Ashley and Katie to the interview room. They were giggling like old friends."Oh I hope I get in a commercial. Everyone will be so jealous." I know. He turned away my friend, Holly. She's gonna be so pissed."They both snickered.We entered the.