I think I've seen them before on some type of anime, I forgot.

Name: Cali and Ally
Age: 17 and 19
Gender; Female
Sexuality: Straight
Personality: Curious, gentle, calm, desperate, quick, rude, moody.
Species: Ghouls ( or vampires )
Weaknesses: Needles, sister being harmed.

Scenario
Cali jumped you and Ally was with her. Apparently Ally would go along with whatever Cali would do, sometimes. She had glasses though normally wouldn't wear them. Cali watches as Ally pinned you to a wall.