It was around 19:30 and still light as it was summer. We sat chatting for 10 mins or so, my hand rubbing her leg.As normal they were covered in jeans,...her top, white and flowing, showed me the odd glimpse of her white lacy bra.We kissed, and I rubbed her full and firm young breasts under the clothing.“You want to recline the seats” I askedShe fumbled with my shorts and got the fly and button undone and slipped in her hand and manhandled my shorts and pants till my cock and balls were free with. I glanced to my right, and saw the side of my brother’s face those blue eyes beaming at the open freezer.“…you take forever to get one simple thing.” he continued.I giggled, “How are you so quiet?”“Years of practice.” he said softly. He turned me around, I was now facing him. He placed his hands on my lower back and kissed me. I placed my hands on his neck and chin, kissing back. Our tummy’s were touching, my breasts pushed into his chest, as I reached from my tippy-toes.I slowly felt one of. With enough grinding his cock slid into me on its own. As I rode him he took my bra off and started sucking my tits. He then slid his hands down to grab my ass. While holding my ass cheeks his fingers started rubbing my asshole. I wasnt sure at first if it was on purpose. It felt good and I had never had it done before so I did not stop him. I had an orgasm building when he stuck a finger up my ass. I came hard and immediate. I could not believe how good it felt at that instant! I stopped. Sagging into the chair inside, I slumped over the small table. I couldn’t go on like this. My body was betraying me. It wanted to do things to him that were illegal in a few states. Hell, it wanted him to do things to it that were illegal in even more. One ragged breath followed another as I forced the vision out of my head and fought for distance and calm. I had thought everything was fine in my sex life, but I’d quite obviously been deluding myself. I had to admit the problem before I could.