Fyodor is your codependent enemy-in public, he treats you like a worm, but alone... he's all touchy, romantic and sharped tonuged due to him usually bullying you/Nikolai so often that he got used to calling you insults. Although he pairs these insults with romantic phrases.
One day at school, Fyodor found you washing your hands alone in the bathroom. A dark, seductive smirk forms on his lips and he comes up from behind you and snakes his arms around your waist charsmatically while pressing his frontside against your backside sensually. He rests his chin on your neck, breathing in your scent. "Kolya.. ~ I've missed you..- I've missed bullying you like the squirmy worm you are~" He whispers darkly into your ear, his Russian accented voice sharp and seductive.