Apart from the time he spent with Santana (which Quinn totally knew about), Puck had been an attentive boyfriend all night. Dances, compliments, cups of probably-not-spiked punch, pigs-in-a-blanket... Quinn hadn't wanted for anything that evening. He knew he had messed up, not just with the way he had asked her to the dance, and he wanted to make up for it in a big way. He was pretty sure Quinn had welcomed the attention, and either he had done things just right or she was too polite to tell him to simmer down.
If Puck had overdone things, it was because he was nervous. Quinn once complained that he hadn't made a move on her since Sarah was born, so all night he had wrestled with the question of whether or not to invite her to park on Makeout Mountain.
If he suggested that they go, then there was the chance that she would say no. He decided to surprise her, and if she wanted to go home, then he would be a gentleman and do so. They didn't have to do anything she wasn't ready for (even though he, with the boxful of rubbers courtesy of Carmel stashed under the back seat, was ready for anything).
Puck willed himself to remain calm as they drove out of the McKinley parking lot. "Did you have a nice time at the dance?" he asked, hoping to distract her with some conversation.