My brother caught a cold this week. He was in bed when I left home for the office this morning and I found him still in bed when I returned. He was felling sick and there was nobody to help him beside me, so I did what I could. I brought him hot tea and offered to read him a story, while he rested his head on my lap. I choose Harry Potter, because it's a easy, fun lecture and doesn't imply much attention, it just sort of drags you in. I was dressed in a very short dress, black stockings and a low cleavage. While I was reading to him, he got horny and started to touch himself. I this when he was already hard and thought it won't hurt to help him a bit, but things kinda... escalated form that point onward! I pulled my tits out of that tight dress, right in his face as he asked if it's okay to continue his business and I encouraged him! I actually believe that jerking off and cumming is excellent for health and I want my brother healthy again! I gave him a hand, literally, while still pushing my Huge Boobs into his face. I'm sure he adored that! I even gave him a blowjob! I don't even know what got into me at the moment but we both fully enjoyed it, it wasn't weird at all, even if we're brother and sister. I loved the felling of his hard cock in my mouth, DeepThroating it and feeling it slide down my throat, easily, naturally... We got hornier and hornier, felling a pair of lips and a skilled tongue like mine down there satisfied him, but did not quench his thirst for sex! I was sucking it, thinking how wrong it is, in fact, to suck your brother's cock and this thought was making me so fucking wet! I was thinking about sex, but was kinda too shy to ask... I'm submissive and I do like to be handled and told what to do! We both got so excited there was no way not to have sex at this point. He asked first :) and I was very happy to hear, rather grew impatient, you know? He penetrated my pussy, from behind, we were spooning and it was so great and wrong to feel that hard cock inside me! The taboo element in this was crucial, I just love to defy the rules, any rules! My tits were bouncing, while he was fucking me, my nipples hardened and I came, thrice! I wanted us to continue, it was so damn hot but after giving me three orgasms he just couldn't hold it anymore so I jerked off his cock until he squished all the cum on my boobs and gave me a pearl necklace!