Responses
Sounds...ehm...yeah, I got nothing.
WAIT HOLY SHIT I FOUND IT
http://www.mangago.zone/read-manga/love_prism/
Yep, the manga is unfinished because the mangaka passed away ╥﹏╥
Basically, it's about a guy who has an older brother that is a doctor and sexually abuses him. This guy is in a basketball club and when he changes, his friend notices the hickeys on him and becomes concerned. And later on the friend sees them in the middle of it when he went to his house to check on him... leading him to f*** him later after they confront.
The older brother who's a doctor started doing this to his little brother because he was under very high expectations to be like his father, wanting him to be a doctor as well. But one day he witnesses his dad doing some questionable BSDM with his mother and he was like: 'I must be like my dad' and started doing that to his brother.
And to differentiate this one from the rest, the most memorable scene I could recall from this was the older brother using an erectile dysfunction curing device on his brother, which he stated was illegal in Japan... which somewhat devolves into pee play. And he also gave him a Prince Albert penis piercing. Yes.
From what I can recall, the name sounds something like... Love Triangle? It's likely that I'm wrong because I haven't found it, but I hope it could be done. However, there is the possibility that it isn't on this site, but it would be nice to find it again after like... 4 years.
Thanks!