I (21F) gave my stepbrother (18M) his first blowjob while my family watched. First off my family is super open. Were fine being nude around each other. Its like a thing. My mom raised us to be super open and do what we want as long as it's not bad, and she met my stepdad at a nudist beach thing, so he's fine with it. Mom has said she's super open it's because of some trauma stuff, but neither she nor my dad (cause that's how I think of him) never explained it. It's been that way since I was born, and adding my step dad and brother to the family was easy.

So it was my step brothers 18th birthday. It was just close family here since we barely are around other family, which I guess has something to do with that unexplained trauma. It was going normally and we got the the cake part and everything. He blow out the candles. And I made a joke saying "What did you wish for? To lose your virginity." It was a joke, but he replied "Well, you can help me" and everyone just laughed.

Except my dad. He said "It is his birthday." That was kinda the end of it for a bit, but as the night wore on, I could see looks and glances. When everyone started to go to bed, my mom pulled me aside and had a serious talk with me about how my little brother (the step brother mentioned before) is being really weird about getting his wish. She wanted me to help. I mean, it's not actually incest or anything.

So I go into the family room, and there's my brother and dad waiting. Mom came in with me and waited. My brother took out his penis and they all just watched me. I got a pillow for my knees since I was on the floor while he sat in one of the recliners. I licked his dick and started sucking cause he was already hard. While I was doing it my mom start3d calling him a good boy and my dad called me a good girl. I actually got really wet from them watching. He ended up cumming pretty fast since it was his first time and after that everything went back to normal.

After I cleaned up, mom hinted that it was really dad's idea, and now that he was 18, there were some other plans. I think my parents plan to swap with my step brother and I, but I don't know yet.