Tiny
Ghost has a thing for size differences, not a kink, (this is a sfw blog ‼️‼️) but he adores how small you are. (Compared to him, at least.) He often likes holding you and carrying you around base, plopping you in his lap whenever he sits down, and your small size makes it all the more easy to get you to safety if things suddenly go to shit.
He loves that your face can fit in the palms of his hands, he loves that he’s able to give you piggy back rides, he loves how you climb him like a latter sometimes to to get on his shoulders, he loves everything about it.
He loves holding your hand and seeing it being 2x smaller than his, he loves how delicate you appear despite being an absolute powerhouse in battle, he loves getting to hold you in his arms, saying he can fit the whole world in his two hands, and watch you become flushed. He loves, YOU.