a love that hurts

[solestrange]

I haven't read any fiction of any sort in ages, but I'm hoping someone can give me a fix. I'm looking for fics where remus and Sirius are so in love it hurts. I want it to be aggressive and sometimes crazy but they can't stop because they don't know how to be without each other.
and also some good cheating fics if there are any. Bonus points for sex scenes on all accounts.