She had fantasized about this moment for longer than she could remember. Now, here she was, slamming that thick, black rubber intruder deep into her p...ecious younger sister’s delicate vagina. Just the thought of it made her so horny; she didn’t notice that Amy’s knees were lifting up off the floor with each new inward thrust of the strap-on.“Oh, Emma, you’re going to make me go off again with that thing! I can’t believe it feels so good now, keep fucking me deep and hard like you’re doing!” Amy. As my hands massaged her inner thighs, she absentmindedly opened her legs to give me better access, I was now massaging her inner thighs and I could look and see a little bit of pubic hair which gave me an instant hard on. I continued to massage her thighs and when I got too close she said “thanks Shravan that was wonderful, I will see you tomorrow” I gathered my things and left.The next day I knocked on the door and she yelled for me to come in, she was already lying on the table ready for me.. They were to be used as part of the systems they may employ on the Space Stations and the new planetary bases.I spent most of my last year in nurseries and labs learning about different methods for growing plants and creating sub-ecosystems to ensure fertilisation. I also spent time learning how to genetically altering them to adapt better in the new eco-systems.Unlike Phil, I hadn’t settled for one girl. However, like him, I had maintained my sterility. I couldn’t seem to settle with anyone. My dick started to shrink and I felt some cum run out of her ass. I slid my dick out and pulled the dildo out of her soaked cunt with some effort. The folds of her pussy lips stuck to the outside, her hole not wanting to let it go. Amy whimpered a little in protest. I knew she wanted more; hell the way she acted I was sure she could fuck that dick all night. I wanted her aching for more though, unsatisfied by the dildo and wanting the real thing. After seeing that dick fuck her and how slutty.