"Oh my god," Stiles practically jumped out of his skin at the first touch from behind. He had planned on turning to face the intruder but Derek moved fast and had Stiles stuck between the sink and the werewolf's body.
"Jesus, Derek," Stiles said relaxing against his Master, unable not to smile at the soft kiss. "I really do need to get you that collar and bell." The smile on Stiles' just grew as he leaned back against Derek and shrugged. "Not to sure and I have learned not to ask."