Ohmigosh I totally found it, it’s Sailor Danshi, 3rd story btw if anybody’s interested.
Oh I think I remember this too but I can't pin a name. And the disciplinary student had a female friend who eventually got a thang for the delinquent's female friend?
It was very pure..
oh! my reply was pretty late haha! good on you! I was actually searching around for a while now.
Oh dear I think I was REALLY off with my guess! The one I thought about was in fact a whole series.
Okay so basically a delinquent student lies and says he has a crush on a disciplinary committee student that’s always calling him out in an attempt to get him off of his back but the disciplinary student responds by saying he likes him too and a bunch of miscommunication goes down but eventually the delinquent confessed for real and it’s all good. I remember it was a one shot in one of those porny mangas but I can’t remember which one.