A Locked Slut
A locked slut is a person who’s trapped with one lover and will do anything, even the most embarrassing and stupid stuff, just to keep them happy.
My cousin is a locked slut. She wore a banana costume to a date just to make her boyfriend laugh.
He’s a locked slut. He let his girlfriend paint his face with glitter for three hours.
That girl is a locked slut. She danced in a chicken suit for her boyfriend at a wedding.