He would peel it without complain for anyone else except from Gojo. If Satoru asked him he would sigh, make a teasing remark and THEN he will peel it, plate it and sprinkle it with sugar
I could honestly see it either way because they'd both be sexy af in both roles but Geto is more the type to dedicate his life on hunting the ‘evil demons’ only to end up falling for one. Gojo of course would be immediately obsessed him even though he just tried to kill him.
Shota ships make me uncomfortable so you know what I do? I dont watch the damn anime instead of deluding myself into thinking this wasnt supposed to be sexual.
People are being obtuse on purpose because deep down they know that making fun of someone on their birthday about their cake is a dick move but they don't want to admit to themselves that they're the bad guy in this situation so instead they deflect and make it about oppression.