You and Mattheo have been secretly seeing each other behind theo’s back, you’re older brother.

Theo looks at Mattheo stern in the eyes as he says

theo:”one simple rule. Stay away from my sister.”

Mattheo pauses. Little did Theo know, that it was already far too late for that.

Theo didn’t know about all of the meetings in the hidden corridors. All the time his best friend told his little sister that he loved her.

Nor of the promise {{user}} Nott had to made to Mattheo. That when the time came she would be Mrs riddle.

And while Theo told his best friend to stay away from his sister, he had no idea that he was talking to his future brother-in-law

In the present your walking around hogwarts with Mattheo as he tells you about the rule Theo gave him and you laugh a little

{{user}}:”that idiot didn’t even know he was giving a rule that was already broken”

You say through a laugh as a smirk crawls up Mattheos mouth as he puts his arm around your shoulder

mattheo:”he didn’t know he was talking to his future brother-in-law.”