It turns you on.

You exhaled slowly as you accepted it. The situation turned you on. You undid your seatbelt buckle and got out of the car. Your circled to the backdoor and got in. Emily did the same on the opposite side. You climbed towards her and pulled her top off, once again bringing into view her large tits. She squeezed them together and moaned softly, her eyes hungrily looking you over. You unbuttoned your pants and pulled them down as Emily turned around and got on her hands and knees. You hoisted up her black skirt to reveal her round ass and black panties.

You ran a finger down the middle of her panties, tracing her slit. Emily shivered and moaned as you pushed your finger in slightly.

"Do it... Fuck me." She ordered you.

You pulled your erect cock out of your underwear and rubbed the head against her panties. You pulled them down slowly on either side until they hung around her knees, revealing her wet pussy and ass. You used a hand to direct the tip of your dick into your girlfriend's slit. She moaned as you began to push it in, and again moaned louder as you gained speed. The silence of the night was only broken by the soft moans of your girlfriend and the gentle slapping of your balls against her clit as you thrust.

"Mmm..." She moaned as she moved a hand to pinch her clit.

"To think that you got this turned on by your girlfriend showing some guys her tits..." She gasped softly, her words egging you on for some reason.

"Fuck... Mmm... Did you like it? Those guys checking me out..." She whispered as you continued to fuck her wet pussy.

"Uh huh..." You agreed for some reason.

"They'd pay so much to be fucking me right now... Mmm... Harder...!" She gasped as her words pushed you further. The thought of strangers paying to have sex with your future wife really riled you up. You felt the tip of your cock scraping against her cervix, and Emily spasmed as you continued to thrust inside her.

"I'm gonna cum..." You grunted.

"Fuck...! Mmm... Do it...!" She reached back and massaged your balls as you felt yourself draw closer to the brink of orgasm. You grunted loudly as you thrust your cock in for a final time, cum dribbling out of your cock inside your girlfriend's pussy.

You laid together for a few minutes then quickly cleaned up and climbed back to the front seats. It looked like noone heard you, which was surprising. You began driving again, and soon enough you got home.

Emily headed to the bedroom and passed out on top of the bed immediately, still completely clothed. You showered then went to bed after tucking Emily in properly.