Ok so about a month ago I got into a huge fight with my bf and ended up kicking a hole in the wall between me and my little brother's room. I am 17 and I'd like to think I'm attractive, but no one ever tells me, except for Tony my little brother. He's 13 and he always compliments me on how I look, how I dress, stuff like that and he's such a sweetie. So back to the story. The day after I kicked a hole in the wall I came home from school and found that the hole was now a perfect circle and the edges were smoothed out. And tacked above the hole was a piece of paper that said, "Knock three times and I'll help Big Sis relax." I was really confused but I had homework to do, so I decided to figure it out later. So fast forward to later that night, it was like 11:30 and our parents had already gone to bed. I was ready for bed and about to go to sleep when i saw light coming thru the hole. So I went and knelt down in front of the hole and knocked three times, and then I called out his name quietly. A few seconds later the hole got covered up. And then he scared me half to death when he stuck his dick thru the hole. Now I had always thought my bf had a big dick, but my 13 year old brother has a dick that's twice as big. It's easily 7 or 8 inches long. At first i was totally freaked out and offended, but the more I looked at it the more turned on I got. It got so back I had to touch it. I reached out and grabbed it and started stroking it like my bf likes, it started getting hard so I started licking it and eventually I put it in my mouth and started sucking on it. It barely fit in my mouth. and by the time I put the whole thing in I was gagging on how deep it went. About halfway thru this I started fingering myself and then I felt his dick start pulsing and twitching so I took it out and he came all over my face and chest. It made me so hot I stripped nude and stood over it with my ass against the wall and I started rubbing myself on it. It only took me 3-4 minutes to climax and it was so hard I ended up bent over. It was then that I felt his dick start to pull back into his room and I thought he was tired and going to bed. I was wrong. I felt the tip pushing against my pussy, which was dripping wet by the way, and then before I could say anything he slid into me. Oh, My, God, it felt incredible and before I knew it I was bucking into the wall getting fucked by my little brother. He was thrusting into me so hard, I quickly came again. and I guess I clamped down on him because he suddenly exploded in my pussy. I was so scared at first then I remembered I am on the pill cause of my bf. It felt so amazing being filled up like that, my bf won't cum in me cause he's scared. This was a week ago and we've had sex thru the hole every night since. The second night I let him take my anal virginity. We've done everything, we watch each other thru the hole, we touch and fondle each other, we even made out thru the hole. It's getting so hot, I'm planning on just going into his room tonight after our parents go to bed and just doing him there. Oh man writing this made me so wet. I think I'll see if Tony's in his room. Thanks for reading everyone.