As soon as her leg is across him, he grabs her butt and pulls her tight against his body, wanting her to feel what she's doing him. He leans up to kiss her, stops short of her lips and smiles, draws back just a fraction as his hands slip under her panties at the back so he can hold her butt properly, feel her skin. Then he kisses her, tongue brushing her lip before claiming her mouth properly.

At some point the car starts and moves off. He doesn't even notice.