Humiliating ejaculation caused by being brought to orgasm by a cute but indifferent younger girl (HALT-090)

Cute, beautiful young girls. Normally, these are aloof beauties who would never pay you any attention. You think that if you tried masturbating in front of them, maybe they'd unexpectedly respond with something like, "Wow! Uncle, your dick is so big!" But when you actually try, you're met with casual insults like, "Huh? What are you doing? I'm calling the police!" or "You're so old, why are you still naked? Are you out of your mind?" Finally, you're even told, "You should be grateful I get to see your disgusting masturbation." Despite this humiliation, the poor middle-aged man somehow still manages to orgasm.