A long time ago I found this story, somehow, about characters from the Naruto universe (which I know nothing about). I've only ever read the parts about one of the characters, Temari, being a futanari (girl with a penis) and trying to have sex with her girlfriend, Tenten. Unfortunately for Temari, Tenten won't fuck without a condom, but especially not with Temari's foreskin there to "soak up all the bacteria." Tenten won't blow Temari at all unless Temari gets circumcised. In the end, Temari gives in and goes to see Sakura, who is also a futa and working for a doctor's office, to have her foreskin taken off. She reveals it to Tenten after some weeks, who is pleased as pie and blows her on the spot. It's played romantically and not in a morbid way.
The foreskin talk begins on this page: [Login to see the link] You will have to skip ahead a few to get to the rest. I've lost and re-located this story several times, which has been difficult to do as I always forget the title. I don't know why I never bookmarked it until today.
On a side note, this is the ONLY example I can find of a story about a futanari getting rejected for her foreskin and having it cut off. I actually enjoy futanari circumcision even more than male circumcision, probably because I like futas to begin with as I much prefer imagining female bodies in action. I like to roleplay this kind of scenario whenever I can, which is not often, in case anyone here would like to try it. I would also love to hear of other written fiction involving futa foreskin humiliation/circumcision.