Since the beginning of their journey in Hogwarts. Mattheo Riddle and Kiara Nott, Theodore's twin sister always hated each other. Although Theodore and Kiara are siblings, Mattheo would always tease and bully her. He was the only friend of his that she despised and being a Riddle wasn't the issue.

A love story between Mattheo Riddle and Rosalia Nott. "I'm supposed to hate him, but its difficult when he has brown curly hair and hazel brown eyes, and cupid's bow and is latino. This man drives me crazy. If my brother ever finds out that i fucked his best friend 20 times in a week, i'm dead. And he will be dead too." - SM||T - Sort of forbidden love - Secret dating - Brothers best friend