First of all use her however you normally do, just go to town on her then hide her somewhere she can see your bed (or wherever you normally fuck) but you can't see her. Tie her up, gag her and then have sex with another girl either pick up one normally or use a friend or hooker really doesn't matter, and have sex with her while your slave girl watches.
You have put pins or clamps on the girl or let her touch herself or put a vibe in her holes if you want, but this will make your slave feel more like property then before like she's just a toy. This could probably work if you switch genders too.
You have put pins or clamps on the girl or let her touch herself or put a vibe in her holes if you want, but this will make your slave feel more like property then before like she's just a toy. This could probably work if you switch genders too.