This one yaoi I cannot seem to find!

Hi!
There’s a yaoi I’ve been looking for, don’t remember the name, but it was about childhood friends who are neighbours. The uke likes to secretly wear panties cuz they are comfy and cute, and the seme gets popular at school. The uke starts distancing himself from the seme and the seme gets a lil sad. One day the uke gets ill and the uke’s sister asks the seme to give him his medicine anally, since no one is at home at the moment. The seme finds out he wears panties when giving him the medicine and even ends up penetrating him. The uke believes it’s a dream until he wakes up with him inside himself. The seme starts blackmailing the uke into showing him his panties and they end up having sex. Honestly can’t find it can someone help???