Revenge
You ride your edge into the next slide.
CARRIE: Oh wow, look at Bob's cum on her stomach. He must have pulled out before cumming.
LISA: Would you like to see him eat Bob's cum, Carrie? I bet that would make us very very horny.
CARRIE: That would be so hot. You are a lucky woman, Lisa.
LISA: Hands off that cock!
You stop and try to regain yourself. You can't take much more torture and want to cum so bad. You remember that night so well and wish you were still there but the reality is really setting in. Lisa now owns you and there is nothing you can do about it. Why did you sign that agreement before reading it? It's like they both planned this to happen this way.
CARRIE: Edge!
LISA: Yes, do as Mistress Carrie tells you. Edge for her, bitch. I should make you go down on her too while you do it.