I need some advice.

An old friend from high school just got a hold of me through Facebook.
He propositioned me to to stuff with him for money. (I don't initiate contact, he does everything [no intercourse, but after he saw a dick pic, he told me he wanted me to fuck him] and he's into feet.)

I'm looking for any advice you can offer. (do it/ no?, how much should I expect to get paid?)

It's the kind of thing where I'd let a friend look for free, but I could really use the money.