The only OF model I've seen to go mainstream at this point and get consistent work is Octokuro and even she still does her own content mostly, only doing studio gigs when they pay it out. Sabrina Nichole did go 'mainstream' but honestly she dropped hard off the radar after that.
I don't think they're fucking every day, I think they're recording batches of content to be drip fed (industry standard method honestly), but I do believe he's the only one putting money in her hands at this point because she's kinda shit from a butt on camera, even given his abysmal camera skills.