What? No it doesn't. There's one scene and that's pretty much it, and there isn't even any groping.
Last night I played through a scene where Ryuji is approached by two super flamboyantly gay guys and I 'abandon' him with them, and he approaches the group in the morning and basically makes it sound like by not intervening, I put his sexuality at risk or something.
I'm not going to pretend that straight guys never act averse to homosexuality, but the way it was written was just strange - being gay was the joke and the punchline.
P5 treats women like a joke too, I mean, the school treats Ann like a whore even though she's not, yet her Persona, a representation of her, has its giant tits completely flopped out. Also, one of your teachers is literally a prostitute that you can hire.