Lauren invites Sam in

"We can't have you running around the house like that," Lauren says, nodding at Sam's cock, "So why don't you hide in here until the problem resolves itself."

Without waiting for Sam to respond she grabs him by the shaft, and pulls him into the bathroom, shutting the door.

"We'll give it a few minutes, let everyone get settled in a room," Lauren slowly strokes Sam, using the precum to slide her hand softly from top to bottom, "In the meantime, we have a clean bathroom to mess up, and a shower for when we're done. Or maybe before?"

Sam, recovering now from the shock of this beautiful girl massaging his dick, runs his left hand down her side, cupping one supple ass cheek. "How messy do you want to get?" he asks, putting his other hand on her face. "There's messy," he says, as he squeezes gently with his left hand, tracing the edge of her lip with the thumb of his right, "And then there's messy," and as he says the word again, slaps her ass, and then slides his thumb into her gasping mouth.

Lauren closes her lips on Sam's thumb, sucking gently, and squeezes her hand tighter on his cock. 'Maybe payback for the slap', thinks Sam, 'I hope I'm not going to regret this.' But between the sound of the shower and the closed door, they are completely alone.

Quickening her stroke, Lauren looks up at him, smiling, and answers his question.