what yaoi is this?

its realllllyyyyy old but if i remember correctly it was about this uke and how as a child he went to visit his best friend (the seme) he goes out the window and tries to jump to a branch the seme is worried and the uke misses and gets his penis destroyed basically like he cannot use it anymore i guess they grow up and the seme gets tall and basically went through all of puberty and the uke stays small fast forward there is a scene where the both bathe together and i also remember when the seme was trying to make the uke feel good he put a q-tip in the urethra? and thats all i really can recall QwQ i hope thats enough thank you!