Hidden behind the closet door, I zoom in as my girlfriend, unknowingly the star of my voyeuristic fantasies, begins her anal adventure. She lubes up, her fingers circling her puckered hole, before I take over, my hands shaking with anticipation. I guide my cock to her ass, feeling it pulse as I push against her, her tight ring resisting before giving way. Her breath hitches as I slide deeper, her asshole gripping my shaft as I start to move, each thrust bringing me closer to release. I pull back, letting her see my glistening cock before pushing back in, her moans urging me on as I fill her ass with my hot cum.