INTERESTING...i was thinking, and tbh the hottest scenario that comes to mind with this is actually involving a smutty fic i read a while back (forgot which one sadly)...contained this particular scene wherein the protagonist was in a cave with a group of sort of primal monsters that they managed to befriend sort of, but it was more of a mate arrangement, and they were feeding the biggest silent one (who was also injured and couldn't move, furthermore as a reward for protecting the cave or something) who was getting horny from being fed, to the point he'd almost cum- his thick cock pulsing under his loincloth and the protag got embarrassed at the sight and left him there all sensitive and groaning for more silently, and he actually did later on in his sleep at the thought of being fed even more thoroughly, with being topped and made to be fed more, with his cock attended to as he was fed more and it made this huuuuge mess in the cave, stinking it up with his musk and cum...it was lowkey kinda hot, the way that he was panting and groaning in sensitivity at being fed and stuffed and getting so hard so I definitely get the idea...

I guess the reverse of that is feeling horny at seeing it happen to another? Also plausible! I'll prolly write a thread abt this later tbh since this is a really good inspo...hehehe