Katsuki sighed, stroking his hand through your hair as you quivered.

"I know, babe, I know, but I gotta get your blood sample.. I promise, I'll make up to you, okay? I'll bring you one- no, three lollipops, okay? And I'll even give you an extra hour of cuddles tonight, but you've gotta let me do your blood sample.. Please?"

He sighed, carefully lifting the syringe.