Recently, I got a new boyfriend. Well, to be honest, we hooked up on Valentine's Day, it was so sweet! I want to impress him and I'll do that by any means necessary. He has a huge cock and I want to DeepThroat it all, to make him wonder how, I don't think someone ever DeepThroated that python, but I'll succeed, I'm sure! Exactly for this purpose I asked my best friend, who does video-chat btw., for a realistic dildo, something that matches his "dimensions". Unfortunately, the dildo she gave me was too thick, I managed to put it all in my mouth, but it was just too thick for my throa! But I am tenacious person and I don't give up so easily, so I tried again and again until my brother entered the room and saw me! I explained to him that I am trying to learn to DeepThroat to surprise my new boyfriend... I was thinking I would be more successful if I'd use a real cock to learn, but I wanted surprise my BF, not try on him and fail shamefully! I don't want to cheat on him either, so I'm presented with a dilemma! Right then I suddenly realized I could try it on my brother, he has a big cock and he's my brother, we're family, so it's not cheating at all, it's learning! He was feeling awkward by my proposal but I convinced him, all he needed to do was sit there and get a blowjob. His cock was as big as my boyfriend's so it was just perfect for me. I wanted to suck it for a little while, to get it up (he said he won't have a boner because I'm his sister, but he was wrong) and once it was hard I began my "training". I relaxed my throat and tried... surprisingly, it was a lot easier than with the dildo! It just slid down my throat, easily, without a problem. I was so happy that I did it again and again in order to master it. My brother didn't regret his decision, he said that it was the best Deep-Throat BlowJob in his life! I think I know how to do DeepThoat now, it's so simple....plus, I can control perfectly my gag reflex! We both got very horny and decided to fuck! Why the fuck not since we're already here?! Wow, that long cock gave me in-commensurable pleasure, I had like orgasm after orgasm. I never thought my brother really knows how to please a woman! After sex I made him cum all over me, all over my boobs! Now I'm gonna hit the shower and go to my date. He will not believe it, I mastered DeepThroat for him and I'm gonna show him the first occasion I get!... Of course, not gonna tell him how I learned it, I'm a dirty babe