You can whore the girls out which is one of those "NTR Like" things that piss off the connoisseurs. No other knights pursue your girls as love interest as far as I know.
Battle Fuck is usually what people cry about.
I recall 2 quest that have this kink:
Semen Collection - It is like it sounds however if you wanted to do the quest without soiling your girls I think a centaur does random collections on the farm so pray to the rng goddess she picks up what you're looking for.
There was also wolves in a cave... It's been awhile and I can't remember off the top of my head if that's related to Semen Collection. If so there's Semen Collection 2

Anyway I think there are some unique things for the Moth Princess there so eh you gotta do what you gotta do.
Another alternative is pick up a random girl you're not in love with, have her do the collecting, and drop her once you're done.
Pretty sure Battle Fuck is in the options for those that just want to turn it off.