Equally possessive Sterek
Derek who gets possessive and territorial easily. He's a wolf and if someone else is looking at his mate, of course he wants to get aggressive but for the longest time he'll hide it. He'll oppress it and force it down cause he doesn't want to burden stiles by being this way. Doesn't wanna seem toxic or clingy or overbearing cause he knows that humans get that way. He's seen it when his mom curbed her jealousy cause his dad didn't like it. (Until eventually he finds out just how much it turns on Stiles when he's possessive)
Stiles who is super unsubtle about being jealous. He doesn't realise how obvious he's being but if you think this guy will stand in the corner and watch his man be ogled at and flirted with. You're WRONG. He's there in a second. Clinging onto Derek like a cat, touching him and being overly mean and sarcastic to the person in question and giving them the nastiest stink eye EVER. Trying to get Derek's attention onto him by any means possible and preening when he does it. (And unbeknownst to him, Derek thinks it's the most adorable thing ever and it makes his wolf super proud to see his mate being publicly possessive over him)
