[m]I’m looking for a manga... it about two guys...apparently this boy has a younger brother who apparently learned to give hickeys when younger once he was thought,he gave a hickey to his older brothers friend...turned out the boy was awake when the younger boy gave him a hickey and ever since that day the older boy would get in heat and ignore him.

Is it Iyayoiyayo mo kiss no uchi?

Ahhhh....yes thank you very much ☺️☺️!!