"Oh god," he murmured, arching under Sam eagerly, biting at his lips. "Sammy, please... fuck."

The bite has him shivering eagerly, gasping. He needs to keep quiet, but damn if it won't be hard, the way Sam's moving.

(OOC: Hey, how were we going to deal with them telling Bobby? Was he going to hear/see something or should they just decide to tell him together? Cool either way! Just thought I'd check :D)