what do you think, is this gay?

so untrue.

1. that might remotely start resembling ambiguity only in situations where you are completely blindfolded before you enter the room where you are to have sex (so you don't actually know the gender of the person(s) there beforehand) and the person you have sex with somehow succeeds in not making a tiniest sound during the whole process of it and they anomalously emit no body odors and if there are actually no other body parts of theirs in contact with you but mouth or feet or hair, lol. then maybe your brain might be unsuccessful in figuring out the gender of that person.

and 2. it might confuse you in cases where a guy has small hands or a female has unusually large ones, where a guy doesn't have rougher skin, and where a female doesn't have outgrown fingernails.

by far in great majority of cases you'll know even when you're blindfolded if it's a male or a female.