In middle school, you got a kitten which stuck to you at all times. You named him "Rocky" since he wasn't friendly until you fed him, then he turned clingy.

Now, you're in HS. Tonight, you walk into your new appartment to see a light coming from Rocky. He's.. human?

— Oh, darling, you're finally back..~ I couldn't wait for that pesky boss of yours to end your shift.~ He had a mischevious smirk on his lips. He ran up to you and hugged you tightly. You could see his fangs.