A guy was enjoying a steamy session with his girlfriend when he felt a strange sensation on his cock. Upon investigation, he discovered that his friend had snuck up behind him and was riding his shaft in sync with his girlfriend. The betrayal was intense as he watched his girlfriend cheerfully riding his friend while his friend's hands explored her sensitive areas. The friend's hands ventured down to fondle her breasts, sending waves of pleasure through both of them. The betrayal and the eroticism of the situation were overwhelming. The guy couldn't help but be captivated by the sight of his girlfriend being shared with his friend, all while she continued to ride him with the same fervor. The friend's hands then found their way to her moist folds, and he began to pleasure her there as well. The guy watched, mesmerized, as his girlfriend moaned in pleasure, her body moving in rhythm with both of them.