We don't have enough overstimulation. Here, or any other corner of other fandoms. But especially here since we have magic as an excuse for godly amounts of stamina.
And I will take insatiable skels any day.
UT!Papyrus who considers only 1 org☆sm to be a failure. 3 is casual, 5 is only a small success. It feels so good, why wouldn't you want to keep going until you literally can't anymore?
UF!Papyrus who gets drunk off his partner's reactions. Sometimes he'll only stop once they're so exhausted they've passed out and aren't even groaning in their sleep anymore.
US!Sans who treats it like a game and keeps track of his personal bests. Shortest amount of time he can cause an org☆sm, the most he can wring out of his partner in a set amount of time, the longest he's been able to go without breaks or without coming.
SFR!Sans who's just difficult to please. It takes him such a gruelingly long time to reach even one org☆sm for himself that his partner is lucky to have enough energy to even sit up by then. (It's impossible to overstim him. You will not last long enough to even try.)
And their brothers who suffer or indulge in this stamina~