In the driver's seat, her married friend's cock stiffening at her every move, she can't help but grind against him. His hands roam her body, cupping her breasts, teasing her clit through her panties. She whispers filthy promises, making him harden further. As she pulls over, she leans in, taking him deep into her mouth, tasting his pre-cum. Then, she straddles him, impaling herself, riding him hard until they both explode in a climax that leaves them breathless and guilty.