after careful analysis of toby's successful sexymen, i've come to the conclusion that the secret sexyman sauce that they are pathetic. sans has crippling depression, spamton lives in the trash, tenna is divorce made sapient, battat needs meds. this pathetic wet cat in a cardboard box energy encourages empathy and makes the character approachable.

this is why mettaton didn't take off as a sexyman, he is too much of a cool guy chad and his emotional issues are only skirted around. also why queen has relatively few fags, she has relatively few scenes where she is not in perfect control of her life and emotions

therefore, deltarune mettaton has a higher potential to be a sexyman, he just needs to become a schizo.