The Doctor in particular felt it was particularly appropriate to pick this visit to explore with me the wonders of puberty and growth spurts and hormo...es and emotions. I endured an x-ray, blood tests and I did finally get to pee in a cup for someone, as I knew I would.I had a provisional clean bill of health. But mom informed me in her best Dr. Mom impression, that if any problems showed up when the tests came back, we would be heading back, and in the meantime she was keeping a close eye on. She now has hold of her ankles as I push her back and with that I slide into her tiny wet hole hole and begin to fuck her, my thrusts are slow at first but then I begin to work into a fine rythm and now am thrusting faster and deeper inside of her, watching her as she plays with her tits is such a turn on and now she begins to lock her nipples and even getly bite them. Rolling her onto all fours I grab her tiny waist and slide inside again and slap her arse as she moans in delight, sticking my. She had been told what time to expect her driver, so she was waiting near the entry-phone for him to arrive."Brian Sedgewick for Miss Meade," the male voice said."I'll be right down."A young man, seemingly not much older than herself, stood by the shiny S-Class Mercedes. "Front or back, Miss?" ... Mmm ... front, please!" Shall I take your bag, Miss?" No thanks, I'm fine!" Helena said.They were soon gliding along the mostly traffic-free streets."Brian ... it's okay to call you that, isn't it. I slowly increased my speed She started moaning loud “Ooooooohhhhhhhhhh! Ooooooohhhhhhhhhh! Yes bro you are doing good don’t n be gentle” “yes bro you are doing great “ “pleases go deeper more deeper” Hearing this I hold her waist firmly and started jerking her harder and harder. She was moaning and screaming like anything after I rammed for 2-3 minutes I cum inside her at the same time she cum too and now I was able to fell a hot stream of liquid spray on my dick that was my sis’s cum as she.