The tightness of her throat must have been working on his sensitive cock-head as he pulled out of her mouth before he came, but she went on moaning an...d looking down I could just see his face was buried in her cunt and whatever he was doing was driving her wild as she had her eyes screwed tight shut as she concentrated on his licking her out. I looked back at that long, shiny b**st just dangling there and couldn’t resist reaching out to hold it. God! was it hard! It felt like iron in my hand and. A little later Helly jokingly splashed a shower of water onto Peter, as he was sunning himself beside the pool. Equally jokingly Peter chased her round the garden, and right in front of their kids their love life took a drastic turn. He caught her, wrestled her down on the grass, held her arms, and jokingly started spanking her round bottom through her bikini briefs. Peter had expected her to fight back, but suddenly she went very soft in his hands, and her heavy breathing was no longer caused. “I suppose its ‘cause I like how they smell.”“EWWWWW gross! You sniff them???? Why?!”“Well, um, it’s because they smell like you… like your pussy.” I explained.“Are you totally out of your mind? I’m your sister you weirdo!”“I’m sorry, but the scent of your pussy… the feel of your panties… just the thought of that delicate material pressed against you… it just turns me on. I can’t help it.”With that I noticed her eyes glance at my cock, which apparently had begun reacting to my consideration of. ”wow, you have a lovely figure Brittany do you work out?"i asked“oh yeah i love workin’ out, sometimes I do it topless.” she said“you work out naked?”i asked“hell yeah, sex is the best way to stay in shape get your blood pumpin' speaking of which-“she says wrapping her arms around my neck.“Brittany what are you doing? but your man” i began.she shook her head. ”dude don’t worry about it, he knows” she assured. she grabbed me and kept kissing me and i wrapped my arms around her waist. we stopped.