i forgot the title

its shounen ai i believe but erotic. the top is muscular, tan, with black hair and he was ordered to take care of a new student thats half alien whose a twink with pink hair (bottom), his mother is an alien celebrity. the bottom turns into slime when he feels horny and the manga is colored. theres also side couple with purple hair and white hair PLS I REMEMBER EVERYTHING SO WELL EXCEPT THE TITLE

now that i think about it the story's really weird but its so good