It's your choice, and it sounds like you've already made up your mind (I always wonder why people post and ask for input if they've already made a decision) but I would be extremely careful.

As far as I've ever read, Brent/Sean has never had a positive business experience with anyone he's ever done business with. This includes his business partner at BCO, Falcon, Cobra, and various other people he's worked with or attempted to work with. The other issue is his boyfriend is reputed to be very, very difficult to work with, and he apparently involves himself into everything, and not in a positive way. And, to hear him tell it, it's always the other party's fault.

Brent had some appeal 4 years ago, but he's never been anything particularly special as far as a porn model. Perhaps when he looked (and was) underage, he sold for that reason (and the then-strength of the Cobra brand probably did more than he did to sell the titles that made him popular)... but that was almost 4 years ago. Sammy Case, for example, was much, much bigger than Brent ever has been, and his product continues to sell well even though he's been heavily overexposed.

Oh, and then there's the question of any involvement with the Bryan Kocis murder. There are a lot of allegations flying, at least some shred of truth (why would he have insisted on immunity from prosecution if he was completely innocent?) and honestly, it's not something I'd want to get within 10 miles of.

If he's just signing up as an affiliate, then there's no harm. But I'd be very, very careful about doing any sort of cooperative business deal.