I'm willing to bet every one of us guys out here have at least looked at the own cum after masturbating and wondered what it taste like. And I'd bet that a majority of you have tasted yourselves!
I've snowballed with a few provider, but all were OK with it beforehand. This is about as kinking as I'll get. Probably my ultimate fantasy would be to cream pie a provider and then perform DATY on her. Unfortunately, it won't happen since BBFS is out of the question.
I also don't know why guys feel this to be so disgusting, but are OK with eating out a providers pussy, and expecting her to DFK him immediately after. Seems like the same exchange. Loosen up guys and give it a try. You'll either like it or you won't.
Lastly, when you've shared a near ultimate intimacy with a woman cumming in her mouth and her swallowing, don't you just have the urge to continue that intimacy with a warm, juicy kiss. I know I do!