My BF want a sextape with his friends

We were messing around the other night and out of nowhere my BF drops this “fantasy” on me — he wants to make a sextape, but not just with me… with his friends involved. Like, not him and his friends together, but me and his friends while he records. I laughed at first because I thought he was joking, but he doubled down and said it’s something he’s thought about for a while.

I’m honestly torn between being shocked, kind of turned on by the thought, and wondering if this is some huge red flag. I’ve never been with more than one person at a time, let alone people he actually knows. He says it’s about him “sharing” me and that watching would be a huge turn-on for him.

Part of me is curious what it would even be like, but the other part of me is screaming “bad idea” because once something’s recorded, it’s out there forever. I have no idea if he’s serious-serious or just testing the waters, but now I can’t stop replaying the conversation in my head. Would anyone actually say yes to this?