Casper gritted his teeth to try and stop the moan from leaving him the moment Sebastian bit his neck but it sounded in his throat nonetheless and he couldn't stop the goosebumps that formed completely over his body in response, eyes slipping shut and heart fluttering inside of his chest, momentarily missing a beat. All it took to snap him out of it though was Sebastian's words about clothing or lack their of rather and his eyes fluttered open his cheeks blushing a brilliant shade of crimson even as his brow knitted into a frown. "Wh-what?" He asked softly, voice barely a squeak as he struggled not to joke on his own tongue, eyes fixed on Sebastian's face as he tried to figure out weather or not the other was lying, whether or not he was messing with him. He didn't know what to do so he just lay there staring at the other, trying to ignore his racing heard as his hand reached out to slowly trail momentarily over Sebastian's chest before trailing it lower, holding his breath, waiting to hit the waistband of pants he hoped to god were there.