She started to shake and her muffled moans got louder so I prepared myself and as she dug her nails into the cheeks of my arse I could feel my cock st...rt to pulsate and her grip got tighter as I felt my hot cum shoot down her throat just at the point that her warm juices filled my face, OMG I swallowed quickly as the stream filled my mouth.It was scary how we seemed to both be in sync with each other as that is the second time we have cum together and we hadn’t finished as I licked all around. I checked the clock it was 7:00 PM and almost dark. (that may seem peculiar for it to get dark that early in the middle of the summer but it does in lake tahoe because the whole area is surrounded by mountains hence the early darkness)about five minutes later i was about to get a snack when they came out. holy shit i thought. my sister was wearing the sexiest thing i ever saw. she had on heels that made her ass just look too hot. it was covered by an almost miniskirt but not quite that slutty.. ‘oh yes they suit you, how do they look from behind’ And at that moment, my cock and inner sissy took over and i dropped my jeans, they slid down my legs to the floor, spinning around i lent forward and raised my ass as high as i could. As i felt the skimpy thong ride up my ass a little more I said ‘You tell me, a sissy lives for approval’. I felt his hand touch my ass and my heart rate skyrocketed, this was going to happen, and anyone could walk in and catch me in a pink thong bent over a. . Uhhh!... Uuhhh!..."Suddenly I moaned out loud as my body shuddered and I started having an orgasm right there without even touching my pussy. "Ohhh! Ooohhhh!!! Ohhhh!!! Uhhhh!... Uuhhh!... Ohhh yeeeahhh!... Fuck me!..." I wasn't sure what it was but I think it had to do with how long his cock was and maybe it touched some part of me deep inside that helped me get to that point. Watching me orgasm must've been too much for him to handle and soon he was cumming too. The big man moaned loudly as.