You tell me I better not swallow. Once he finishes you tell him to leave. I'm still on my knees, with my mouth open. You tell me to swirl the cum arou...nd with my tongue and then you tell me to swallow it all. He is gone, and you tell me this time for the two of us to play.I hadn't realized that while I had his cock in my mouth, you have stuck one end of your strap-on into your pussy. You push me back onto the bed pushing my legs back and slide your cock inside of me. You asked me how your cock. I was wondering what that sound was, when i realized it was their bed, because I would masturbate in their bed weekly. suddenly, i heard a faster rhythm and moaning. i was laying in bed and my dick started to get hard, so i gently started stroking my dick slowly to the rhythm of the bed shaking. the moaning began louder and louder and i felt myself about to cum. then i let out a huge load, and heard my parents stop, and they began to talk. i wiped up my cum off the bed and began to try to fall. The big deal she told me was that she walked in and I did not hear her and she saw me sitting there naked jerking off . She told me that I must have either been paranoid or heard her because I turned my head and she walked away and did not see or know if I finished. Now that I was really embarrassed and I know I had to be red in the face I could not believe that I could feel myself getting hard. My sister noticed that my dick was getting hard and started laughing. She asked if I liked being in. I sucked her pussy fiercely and she started shouting in a low voice aahhh mmmmm ssss ohhhhh.After thoroughly enjoying her pussy and drinking her pussy juice, I came out of her saree and saw her holding the window grill tightly and breathing deep after some intense suck sex. She already started sweating as I saw a big round patch of underarm sweat over her blouse and some sweat on her face also. I stayed on my knees and saw her sexy waist for a few seconds. As she was taking her breath back, I.