The chocolate bar

I suck at these but I will try!
Ok hange gives Eren a seemingly innocent chocolate bar but it's secretly an aphrodisiac (a natural item supposed to make a person really horny) but she gives Eren way too much! So Eren now is in physical pain and the only person who can help is a certain badass character with a bad attitude.
Will Levi help Eren? Or will he let Eren suffer till the aphrodisiac wears off?

This fic is a little kinky....blood, bitting, Daddy calling..... you know normal stuff......