I only woke up because I heard Sarah groaning on the bed. Alex had her laying flat on her stomach and was fucking her vigorously. She kept moaning and...asking him to fuck her harder. I’m not sure how long they had been fucking because shortly after I started watching Alex began cumming in my wife. I closed my eyes and went back to sleep.I woke the next morning and heard them in the shower. I started to make some coffee as they came out to get dressed. We set up our plans for the day and decided. She put one hand behind her and graded my cock and said woow your almost as big as dad! The she cupped my balls and said you shave them like him too. Kerry is just 16 but no where near a virgin.she pulled her PJ bottoms down just a little bit below her sexy ass and pushed back,pressing her ass on my hard on. Without thinking twice I got my boxers off and started to enter her. Now I got my little sister on my cock moaning. I'm going nice and slow for about 20mins when she says ' harder, I can. But as he worked up a rhythm it became a sensation that was hard to describe. Never in a million years did I think my best friend would be fucking me in the ass! He told me to lie on his back after slowly taking it out. He penetrated me again as I began to stroke myself. It wasn’t long before he pulled out without leaving his cum inside me. We both just sat there panting before deciding it was time to hit the shower.We both got in the shower together and started off rubbing soap on each. You just needed a little push to get you over the top”, I said to Eva as she got used to having a big thick cock in her. I relaxed my arms and lowered my pelvis back to the floor, my cock slid midway out of Eva’s stretched pussy. “ Sit back up, now you know you can take all of my cock, ride my cock like the good whore you are. Now get up, my cock is getting dry, it wants to get back in”, I told Eva as I grabbed her by the waist and lowered her back onto my cock. She sat up, concentrating on her.