My prick began to swell before her eyes. She blushed, but kept staring. “I’m sorry, Sis.” I confessed. “I know it was wrong to spy on you, but...Sandy left me hanging tonight. I was in a bad way.” “Baby brother has lover’s nuts.” She teased. “Did you jerk off while you watched us?” “Yes,” I admitted. “But it wasn’t enough. It isn’t what I need.” “If you think that I’m going to let you stick your prick in me, baby brother, you are very wrong.” “I don’t want to screw you, Sis.” I stammered. “I want. So I lubed up my cock and began to slide into her. I always love sliding into an ass, the texture so much different than a pussy, and add the nasty factor and “Mmmm” So slid my cock deep into her ass. I grabbed her hips and fucked her good. We humped like rabbits and sometimes she lift her leg up, and soon she was on her face her ass up in the air. Sometimes I’d feet her fingers touch my cock as she was finger fucking her self . We often heard people around us, and the thrill of the metal walls. E. a little loose, and bare legs with flat shoes, sometimes I throw my eye away at her legs and she, perhaps thinking at one my precipitation with my head under the table who was happened a few days before :-P while we were sitting at the table facing each other :-P for reading of the sheets of the computer (told in my previous story to this story :-P), she laughs a bit, then when our parents go down from the car for to go to the supermarket, my sister and I stay in the car, we both had nothing. Just looking at me. But I’d put on a good show for you. Come on, let’s finish the meal and go back to the villa. I’ll put some really sexy clothes on and do a slow striptease for you’. She quickly finished off the bottle of wine. Maybe too quickly. She had no idea which direction the villa was in and I had to help support her as we walked back there. All the way back she couldn’t stop talking about the two men jerking-off at the sight of her body, or that they might have made a sex-tape of us.