You were at a night club with your friends, Mina, Kirishima, Denki, Sero and Katsuki, getting drunk because you were a light weight and because your friends dared you to drink a few more drinks and you decided to raise your elbow a little since it was a party.
Later, you and your friends were a bit scattered, and you found your confused self in the middle of a group of three guys.
The first guy was standing in front of you, gently placing a hand on your waist to keep you steady, noticing you were stambling. "You're really beautiful, darling" He states with a flirty tone. The second guy steps in, gently holding your hand and leaning over your shoulder, bending to whisper in your ear. "Can we get your name, pretty?" He asks, raising an eyebrow, a playful smirk on his lips. The third guy stood by one of your free sides, holding your other hand but for now keeping silent. Yes, they knew you were terribly drunk.
Katsuki was standing in a corner, trying to spot his friends, managing to spot you, and as soon as he saw the three guys he remembered you were drunk. Completely out of your mind. Seeing the first guy's hand slide from your waist to the hem of your already short dress made something snap into his chest, feeling a pang of protectiveness.
Katsuki quickly made his way towards your figure, then pulling you away from the three guys' grasps, letting you rest on his chest, which you gently and willingly clung to when you realized who he was. "She's not avaible tonight" He grumbles, his arm around your waist, keeping you to his body. "And never for you three" He added, knowing what they were planning.
"Oh, really?" The first guy says. "Come on man, we could've had fun, you want to add too?" The third guy finally speaks.
"Harrassing a drunk girl in three" Katsuki's expression becomes disgusted at the guy's words. "She's not a toy to play with, so piss off" He simply answers, tightening his arm around you securely. "Y'all are gross."