Sure - just take away the feeling of orgasm without removing anything else. Or could also make at least one time randomly humiliating (which can be done in several ways with very limited effort).
For people who center sex strictly on themselves, it would be crushing. Sounds like a self-generated hell to me, very efficient for Satan. Let’s go.
Don't take away the feeling of organism, take away the entire organism. Just allow people to keep building indefinitely. Similar to the bass that never drops.
So let's assume that the Devil is somehow in charge of hell and can punish people. You die and go to hell but your body is still on Earth. So your soul goes to hell, what makes you think you even have genitals? Or if you do what makes you think the Devil wouldn't just make you super horny and then remove them anyway? A being that's so powerful it dwarfs the distance between an ant and man and you think he's somehow not going be able to deal with a few idiots?
And if he just snaps his fingers and you now have no arms, legs, or tongue and then sets you fire, I don't think either of those things is going to help. Yes, I realize it's supposed to be ridiculous and I'm totally not playing ball with that but I like a little more thought in scenarios. Now given the same situation only slightly more plausible I would find it more amusing from the opposite perspective. Someone who thinks they'll be able to do whatever in hell if they can just show up in enough numbers and the Devil's like that's cute and snaps his fingers and bam they're all minnows or something.
For people who center sex strictly on themselves, it would be crushing. Sounds like a self-generated hell to me, very efficient for Satan. Let’s go.