A secret knock on the door reveals a surprised, yet eager, girlfriend. She's dressed to impress, her large, round tits barely contained in a low-cut top. She drops to her knees, her hands reaching for his already-hard cock. With a mischievous smile, she takes him into her mouth, her tongue swirling around the head before she dives down, taking him as deep as she can. The voyeur, hidden in the shadows, watches, stroking his own cock as she works, her mouth filled with her lover's meaty length.