Responses
Could it be Salty Lust?
https://www.mangago.zone/read-manga/salty_lust/
yess!! tysm, I'm an idiot i had it on my bookmarks. I realised it now. thank uu!!
i remember reading this yaoi some months ago and i just remembered it now, but i forgot it's name. there was this "alien" who was following this person (the bottom) around. sorry I only remember this. they met each other very frequently and the top got hard every time he saw the bottom. tysm if u can find it!!