my guest is maybe it pertains to sperm you know, when the Seme shot outside like on face, the sperm will literally FLY
( ° ʖ °)
I think it’s because “flying” can be used almost the same way “f***ing” can be used (so basically to make what you’re saying sound more forceful/emphatic), at least in American English, although of course “flying” is not a curse word. I know my mom hasn’t said the phrase “I don’t give a flying rip” before. So I think that’s where it came from.
*my mom has said
Is anyone else confused about the "flying orgasm"? （￣へ￣）I still don't get it ╮(￣▽￣)╭