first of all, yes, skeletons are gay. I know this because I am gay and I have a skeleton. every gay i have met has a skeleton too. therefore skeletons are gay. pretty simple.
secondly, no, the skelebros would not be pink. bones are pink because of the combination of white bone + red blood, but as far as we know, monsters do not have blood, their bodies are made of magic, which is why they turn to dust when they die instead of corpses. except for maybe sans, idk what’s up there, maybe that’s blood, maybe it’s ketchup, maybe it’s raw determination. who knows. draw sans with pink bones.