Main character is next door neighbor/lives in neighbourhood to seme. Seme is the " big brother" next door and they both known each other for long time. Seme is in college and/or working while uke still in high school
Main character is interested in seme, but the seme doesn't seem to be interested in him. Seme is sleeping with a prostitute (i think he was one at least or someone he knows who sleeping with in exchange for money to help) and possibly have developed feeling in the end for the prostitute while prostitute is thinking of stopping the line of work as well.
Prostitute stops selling himself and uke possibly was rejected and seme ends up with the prostitute possibly or
no real happy ending if i remember right

It's a much older manga(may have read it over 5+ years ago) and not sure if it was a oneshot or a very short manga(2-3 chapters)

Thank you, any help appreciated

Is it possibly an entry in the Rules / Hydra Series by Miyamoto Kano? Or another of her major series/universes. Sorry I dont have more details now. It's kind of a convoluted universe in terms of who ends up with whom. And it's been a bit since I read it all.

If the vibe is way off, lmk and I may be able to find something else.

BL fiend | tag gremlin | metadata yum

sorry for the late reply

The series doesn't seem to be ringing any bells for me
Will take a look at the rest of Miyamoto Kano's series/universe to see if any do

Thank you!