Your slutty stepmom wants to use your cock on cam

My stepmom is pretty hot. She isn't much older than me and hasn't been married to long to my stepdad. I can't count the number of times I've jacked myself off to the thought of fucking her. Its so hard listening to my stepdad fuck her late at night. I wish I could get that attention from her. My wish some what came true today when she burst in my bedroom claiming she needed my cock to make some extra money. She explained she ran up a lot of debt on my stepdads credit cards and has been doing web cam shows without his knowledge to pay off the debt. She said she has a regular customer who will pay her a huge of a donation if she could use my cock in her show. Isn't that or close to it? I mean I'm over eighteen but should a step mom be using my cock to make money? Who cares, she said she would kick me some of it if I cooperated. I agreed to let her jack me off instead of use my cock in her pussy.