Casper frowned deeply, thinking hard about that for a moment or two and just came up blank, he couldn't figure out where on the body anyone could possibly want to be pinched that hard. Giving up he moved to pinch the side of Sebastian's neck as hard as he could. "You really want to be covered in bruises for the next week while I try and figure it out?" He asked coyly, pulling his head away from Sebastian's neck despite the more tightened hold the other now had on him to look up at his face. Moving his hand around to grab Sebastian's forearm he tugged his hand away from his back so that the other's fingers would stop moving across his scars, he didn't like to be reminded of them.