We made out in her kitchen for a couple minutes, then moved to her couch. I had my hands on her legs and then her sides, she was rubbing my legs too, ...then worked her hands up to my crotch, rubbing me over my jeans. I cupped her tit in my hand and started rubbing around, getting her nipple to poke thru her bra and shirt. With it she let out a bit of a moan. Soon she was undoing my belt, then moved down between my knees. I leaned back on the couch as she undid my jeans. I was a little better. " He's not that bad," said Denise, "I think he's a bit cute. So how about it big boy?" Yeah ok," I said. "I'll take you over there but after that you're on your own." No worries," said Denise, "Once he sees us I sure we'll be staying. Lets go and change." What, I was going now," I pointed out."We won't be a moment," said my sister over her shoulder.Twenty minutes latter they re-emerged totally re-dressed. Gone were their tatty jeans and T-shirts, now they were wearing short, short skirts and. She tapped him on the shoulder, and he looked over at her."This is a one time thing, after tonight, you are mine. Got it?" Jeanette asked to make clear."I got, sis. I love you," Tim sweetly put it.Jeanette was in the moment, so she needed a hug."I love you too, don't ever leave me," Jeanette whispered in his ear.Tammy backed away, and he gave Jeanette a big hug, where he picked her up."No fucking way," Tim said loudly.Tim put her down, and Tammy reclaimed his lips. I really just adored them,. I was holding the pillow tight, moaning loudly, about to experience yet another orgasm. He maintained the steady movement, after sometime, without even giving him a hint, I came again.Fuck! My first double squirt! I was aghast. I was spell bounded.He lied down post that next to me. He is a human afterall, he was bit tired. His tool was still erect. This time, I didn’t waste much time. We were smooching wildly again. I was holding his tool, and he was spanking my ass.He came on top of me, got.