That's what I call it. When someone forces you to do a NSFW rp. Has it ever happened to you? It happened to me two years ago. I had a sweet little OC (my first male oc in fact). He was shy, kind, and rather wimpy. He was my favorite cinnamon bun and I swore to protect him. I failed to protect him. I was roleplaying with a new friend and I was using him as my main. The other girl shipped her OC with mine (I didn't see it working but I was ok with it I guess). Well eventually she wanted her girl to do the do with my guy. I'm fine with characters doing that as long as they are married and the scene is not written out. Well her girl and my guy were not married and I had designed my guy to be a virgin forever (I cannot picture my little dude to do more than a hug or shy kiss bless him). I told the other roleplayer I was not wanting it to happen. However she harassed me to write it with her (I was 16 at the time). I forced her to skip most of it, thankfully, but I felt dirty afterward.
I do RP, no, not with strangers. There are two people I roleplay with and I refuse to roleplay with anyone else. I only trust those two.
Please, if you do not want your character to do the do with someone else and they harass you for it, block them immediately.
If you're underage, do not engage in any kind of NSFW rp because it can get you and your partner in serious trouble.
Even if it's fictional, it needs consent.