Loki's mistake
Loki woke up from bed, and decided he wanted something from the devil. he travled to Mephisto's realm and brokered a deal with the demon. "I want to try a one night stand with the devil, gender does not matter" said Loki as Mephisto laughed, turned into a wrinkled old woman and waited.
now, loki is the god of mischief but even he was offended. still a deal was a deal.
that was a grave mistake. after all, Mephisto has superhuman stamina, and was into S&M
Loki's insides hurt, his manhood was on fire, his breath was shallow and before he could breath...it withered and fell off. Loki tried with all his might to repair the damage but it was useless.
for millenia, Loki was called Dickless, a name he most hated. Thor, who bedded every woman he could get, belittled his brother, and Odin looked on with disagreement. only Sif understood. "if it's any consolation, i fake it 9 times out of 10" she said. Loki disappeared into his room and wept.
the deal had made him the laughingstock of asgard, the butt of many jokes.
eventually, he returned, with the one thing Mephisto could not abide:
A book sized binder full of MLP fanfiction.
Loki watched with Glee as Mephisto screamed as the rainbows forcefully went into his ass, came out his mouth and exploded him from the inside out, all while giving him the mother of all wedgies. he was then dragged to Equestria in chains made of gold.