I am a bit of a slut but only for one man. Since I was thirteen and he was fourteen, my brother and I have been very sexual with each other. It started as us just teasing each other and being horny teens with raging hormones. Then one day we were messing around with each other and teasing a lot.

I would touch his leg when I moved past him and he would smack my ass. I purposely let him see my tits and he flashed his dick. For a couple hours we teased each other more and more.

Then we were playing a game, testing each other's flexibility. He said that if I could put both my legs behind my head, he would do anything that I wanted. A few moments later and I could just barely get both legs behind my head but I did and he had to do something. So I told him to take his clothes off.

As we agreed, he took his clothes off in front of me and his erect cock sprung out just three feet away from me. I was horny at the sight of his cock. The I said if he could bend over and get half of his own cock into his mouth, then I would suck his cock.

I didn't realize how easy that would be for him with his 8 or 9 inch cock. But a minute later he sat on the bed in front of me and got a little more than half of his cock into his mouth despite being reluctant at first.

Now I had made a deal as the game rules and he laid back on the bed. I sucked his cock to the best of my abilities. He said it was amazing and I loved every second of it.

A few days later we decided that if we could give oral to each other, we could have sex just as easy.

Since then, my brother and I have had sex multiple times per week and we share a two bedroom apartment. Pur friends and family think that we are just siblings sharing an apartment to save money but in fact we share the each other's beds several times a week.