Since my boobs stated to have tits when I was a teenager my brother started to became obsessed with them. When we were playing or grabbing each other for some silly reason, he always tried to grab my boobs. One night I pretended I was a sleep when he came to my bedroom, put his hand under my pajama and stated to fondle my breast. My nipples got so hard and my pussy so wet like never before. Officially it started one day when we were home alone watching TV, we were about 15 and 14 years old. While we were watching a movie I felt his hand grabbing my left breast and I told him I wasn't wearing a bra and he wanted he could put his hand under my t-shirt. He did and I got pussy so wet that my shorts started to show a stain. After a few minutes I pulled up my t-shirt and told my brother to suck on it and I had an amazing orgasm. Since that moment we never stop doing whenever we can, and I always cum like crazy.