My devil. My mate

--Unedited--

Devon Beauvoir ' 20
Sirius black ' 18

Devon is a serious and cruel person who is the highest demon in the world , he can't accept others break the rules when he meet his mates , Sirius who like to play around and break the rules ,what would happen between them?

⚠⚠ WARNING : grammar mistakes!!
**this is a boyxboy story
Completed at 2 June 2017