The marauders find out that Sirius and Severus have been living together, James doesn't know what to think. Rated: M

James had done everything right, he cornered the git and threatened him to break up with Lily, but then the half-blood decided to muck it all up by revealing that he wasn't dating Evans but...Evan. Who's Evan? James should feel relieved! The girl of his dreams was still single! However, he couldn't stop obsessing over who exactly managed to steal the dungeon bat's heart.

Sirius Black was under a marriage contract since his birth to the heir of Prince that was Lord Prince's grandson Severus Prince. Born with the magical gift that allowed him to get pregnant Severus was the last hope of House Prince. Sirius, James, and Remus dumped Peter after he tried to get Severus killed by Moony. That made Severus the unofficial fourth Marauder.