Responses
Sounds a bit like Super Lovers, but I don’t think there was a step dad involved. I watched the anime rather than read the manga though so I can’t be sure.
Hope you find what you’re looking for! :-)
It's not that and thank you.
Found it, it was this one.
http://www.mangago.zone/read-manga/hiren/
I'm looking for a manga I read a long time ago it was brother x stepbrother I remember that the uke had golden/white hair and seme had black. So when seme (younger brother) was young he had a wet dream and he was scared, he was crying while washing his underwear and his brother came in and then he taught him how to masturbate, later in the future, his younger brother was in love with him and he always waits for his older brother to come home and he listened through the thin walls when he masturbated also I think the older brother was in love with his stepdad.