“I’ll leave you to get started; you can help yourself to cold drinks from the fridge anytime.”With that, he turned and walked back into the kitc...en leaving me sitting there imagining him and his wife walking around naked. I could feel my cock starting to swell in my shorts. At sixteen I’d already discovered how good it felt to strip off outside but I’d only ever done it alone in the woods. I always got a huge erection and it was a strange mix of excitement and fear which really turned me on. I. "Masha, you know this isn't right! And what if Mom finds out? She might hear us.", I protested weakly, enjoying feeling her naked body pushed against mine. "Mark, just give in, please, I want you.", Masha said with affected shyness. I'd never had a girl tell me she wanted me before, and one as hot as my twin sister was something I didn't think I could ever hope for. She took one of my hands and placed on her round, smooth butt. I enjoyed massaging it, grabbing it. She took my other hand. Use... three fingers." I tightened my arse ring as I felt the knuckles of her three fingers slip inside me. "That's it... yes... I can cum... make me cum Brigid... fuck me... fuck me hard... ugh... ugh." Brigid increased the speed of her fingering and began so suck and lick harder at my cunt. I let out a loud low groan, my legs twitched and my whole body shuddered as I climaxed. She stopped fucking me and crawled up my trembling body, she sucked on my tits as she came up to kiss me, forcing my. I dared myself to cycle naked along the single-track through the woods - it was a huge rush and in the rain great fun getting covered in muddy water being sprayed up from the tyres. I was so care-free, usually I am more anxious naked outdoors alone than I am in the company of other men. I'm always the first to make a move or get undressed. I like to shock but always dream of being dominated and seduced. Today was to be my lucky day. After enjoying the streak through the woods, and a crafty wank.