I was trying to relax her before the onslaught. Then I spread her ass cheeks and inserted my dick in her ass. Her ass was so tight that only the tip o...f my penis could enter her ass and still Shaila was in pain.I waited for a few minutes until she was used to my penis and pushed once again. This time my penis entered a bit more in her ass but was still not completely in. I started the to and fro motion and was fucking her slowly in the ass. Shaila was screaming at the top of her voice now. I. Some of her fellow yogis werefatter than me and I didn't need to master all the postures straightaway. Also Diana said that she thought that once I got started and gotthe yoga bug I would keep going which she knew I wouldn't do if I tookout yet another gym membership.I recall after a yoga session telling Diana, "Look, my belly is smallernow, but your breasts are still b cup."Diana teased, "I wonder what size your breasts are."Eventually I agreed to let her measure me and it turned out that I. "Need some help?" She whispered. "No, I'm fine, thanks." I started to turn red from embarassment (who wouldn't?). She slammed me down onto the sofa, and without warning, started rubbing my jeans. "I saw you looking at me, Robert. You aren't very subtle." She stated. "Sorry, but who wouldn't stare at you dressed like that!?" "Shut up and unbuckle your belt, and pull down your drawers." My sister easily overpowered me, as I was shocked by what was happening. I did as she said, but stopped at my. ”"And that’s my problem how?” He could tell I was in deep thought. "Baby, it’ll be good, I promise you."I really was not in the mood after such an intense orgasm but I knew I had to play along. Leo had a very sexual presence and I could tell that "no" was just a suggestion to him."Tell you what, let's relax for a few, watch some TV and just enjoy each other's company." Great" I said, hoping I could either get my drive back or that Leo would lose his.Leo was obviously comfortable with his.