As soon as he felt the pinch to his neck, Sebastian jerked backwards from the pain. "Hey! That was definitely not what I had in mind," he muttered. Just for that, he drew his hand back and smacked Casper on the ass before his hand ended up being pulled away. "Something wrong?" He still hadn't completely let go of Casper, although now it would be a lot easier for the other to get away if he wanted to. Pulling back the way he had, had loosened his hold on the younger man a bit.