Examples: - You're playing with yourself in the bath, and forgot to lock the door.
Whether you're fantasizing about step-sis/step-bro, or actual sis/bro, what you want to do is first describe the Situation.
Say something explicit and ask him how it affects him. If he's enjoying every bit of it, go as far as you like.
There are a lot of things that can be sexy in a fantasy that would probably not be sexy in real life. all of those would probably not be enjoyable to you in real life, but in a fantasy they can be extremely erotic.
When role playing with a guy online in a chat what kind of things should I say? - You're wrestling in the pool and realize when he holds you that he has a hard on.
- Your parents go on vacation without you, and they leave you with a neighbor, who has only one spare bedroom, with only one bed in it.So first figure out a sexy Situation that'd bring you together.