My brother and I have always been close growing up we would spent a lot of time looking out for each other and on the odd occasion we would see each other naked and that’s where it ended until a few years later…. I was 20 years old my brother was 22 I had my own place and my brother had moved away due to his job. He was visiting for the weekend and going back on the Bank Holiday Monday. We were both at our parents for Sunday lunch when the conversation turned to my brother and his works summer party and he said he was going to give it a miss after splitting from his girlfriend mum as usual on at him that he had to go and then suggested that he takes me at the time we just laughed and it was left at that. As my brother was staying with me he was making comments that it wasn’t a bad idea if I did come. I just laughed at the suggestion he was persistent. Next day he asked again and for some reason I said ok but it would cost you! I needed a new dress and shoes he agreed so he suggested we go shopping before we went back. I tried on numerous dresses and settled on a red strapless dress the type you didn’t need to wear a bra the inside padding was sufficient. It was just above the knee with a split up on side and to finish it off a pair of strappy heels. The weekend of the party I arrived at his place and he had booked a hotel close to the venue and he drove there. On the way we agreed our stories which we knew growing up together checked in to the hotel and went to our rooms and got changed while doing my hair and makeup he came into the room made himself comfortable chatting while I finished my makeup I put the dress on in the bathroom and came out asked him to zip the rest up for me handbag etc and then off to the party. He didn’t mention to anyone or did we say we were brother and sister people assumed we were in a relationship and we didn’t say anything to put this right. I had a great night quite a few glasses of wine and champagne were drunk and few dances together chatting to his work colleagues it was soon time to leave. We got back to the hotel heels off we had a drink together and a chat i said I was going to bed but before I went I asked him to unzip my dress as he was doing this he said “I wish you weren’t my sister” I asked “why” he said that “if you hadn’t been my sister i would be fucking you” that second I felt my body tremble and I just turned round and looked at him he said “Sorry but it just what I thought” he was looking embarrassed but I could see from the bulge in his trousers that he was aroused. I stood there and said “I am your sister” he replied “that’s a shame” my answer was” I won’t say anything if you don’t” dropping my hands that were holding my dress against me letting the dress fall exposing my boobs. Nothing else needed to be said he grabbed me kissing me working my dress off me soon it was on the floor standing there in just my panties his shirt and trousers were soon off pushing me onto the bed kissing me sucking my nipples working his way down my body pulled down my panties and throwing them across the room, his face buried in my pussy licking me his tongue probing me fingers parting my lips so he could get his tongue in deeper it was bliss and at no point did I try to stop him I was loving every second of it. He stopped stood up taking his pants off exposing his hard cock having seen his cock previous while growing up it looked a lot bigger that I remembered he cursed “no protection shit!!” “I’m on the pill just fuck me” was my reply his cock was inside me and soon fucking me deep and hard his balls slapping against me soon he was cumming deep inside me filling me with warm cum after he finished we lay there on the bed not saying a word. After sometime I started playing with his cock and soon it was hard again I started to lick and flick my tongue over the head of his cock and then took it fully into my mouth and stated to suck taking it further into my mouth feeling it deep in my throat I wasn’t letting go and soon felt his cock twitching and then unleashing load after load of hot cum into my mouth the sheer volume started to fill my mouth some poured out some was swallowed I milked his cock dry. We fucked a few more times that evening before getting cleaned up and going to sleep. I woke up feeling his arm round and his cock pushed against me as I moved he woke up we were both a bit sheepish and just lay there contemplating what we had done. We both agreed it would be our secret and on no account would we say anything to anyone. He asked if I wanted to keep doing it and the thrill turned me on so agreed and as he lay there I went straight for his cock taking it in my mouth and sucked him till he pulled out and wanked himself a few times and shot his load all over my face. After breakfast he fucked me again before we checked out and the back at his place we fucked all afternoon and into the evening before I drove home.