I've been suspecting my brother of being a pervert for a long time, but only today my theory was proven right: he's not only a pervert, but has a fetish with his own sister! I was dressing and I found a pair of panties soaked in cum! He's the only male in the whole house, so... it wasn't so hard to guess who the author might be. I confronted him about it, he denied, of course, but I actually caught him red handed: he had a solid boner, poking through his underwear when he entered my room! I know he's super afraid of our Mom so I used that trick to make him confess. I actually got a sick curiosity about it, I wanted to see him masturbating to my panties, adoring them, smelling them and rubbing them on his face. He refused, but I, again, called Mom and he complied immediately, he was hard anyway. I felt worshiped in a way I never felt before and that aroused me. It was something new, to know that my brother sexualises me and is attracted to me. He started to rub that big cock of his and I got more and more interested... I pretended that I'm showing him the "right" way to masturbate, but, I just wanted to touch his cock, in fact. I rubbed for a bit, while he was kindly asking me to stop, arguing that it's not right. Well, darling, it wasn't right when you were jerking to my panties either, it isn't now, but I don't see a huge difference, or maybe just one thing: that we should stop pretending and running away from our deepest desires. I promised him I'll stop rubbing it and I dis stop, just to lay on my belly and suck it! Yeah, i actually went all the way, sucked it, DeepThroated it and licked it like a cherry lollipop until I became so aroused I decided it's time for some quality fucking. I rode his dick, jiggling my perky ass over it in the reversed cowgirl position and in no time I came... hard! I continued to move slowly and sensually, not forgetting to look at his face, the face of a man that lives his fantasy! I did that, slow and maddeningly until he announced he can't last much longer... things became quite hot even for my perverted brother! I rubbed my ass against his cock and he came tempestuously, sploshing my ass. The last drops of cum drooled over my wet pussy, while I told him I wasn't going to tell Mom anyway, I just wanted to... fuck with him, if you know what I mean!