Lauren thanks you

The parking lot sat empty and dark, only the faint glow from a distant streetlamp cutting across the asphalt. Lauren leaned back in her seat, breathing easier now that she wasn’t stranded alone.

"You’re a lifesaver," she said, turning toward me. The motion made her tank top shift, and before I could react she hooked her fingers under the hem and lifted it. Her athletic tits bounced free—round, firm, nipples already tight from the cool night air. She held the shirt up for a second, letting me stare.

My cock twitched hard in my jeans. I was still telling myself I was a faithful boyfriend, but the sight of those perfect breasts made the lie obvious.

Lauren noticed the way I shifted. She smiled, small and knowing. "I want to thank you properly for coming out tonight." Her hand moved to my belt, unbuckling it with quick fingers. She tugged my zipper down and pulled my cock out, already half-hard and thickening fast. She wrapped her fingers around the shaft and gave it a slow stroke.

"Sarah’s not here," she said quietly, almost to herself. "And I’m not worried about her."

She leaned over the center console, lips parting, and took the head of my cock into her warm mouth. I groaned, one hand gripping the steering wheel while the other found the back of her head. Lauren sucked me deeper, tongue swirling, spit already running down my balls. The car felt smaller, hotter, every wet sound loud in the quiet lot.

She pulled off with a pop, climbed over the console, and straddled me in the driver’s seat. Her shorts were already pushed aside. She lined my cock up with her pussy and sank down in one smooth motion, taking every inch. Her athletic body moved with purpose—hips rolling, tits bouncing right in my face. I grabbed her waist and thrust up to meet her, the car rocking slightly with every stroke.

Lauren rode me hard, palms planted on my chest, moaning every time I bottomed out. I leaned forward and sucked one of her nipples into my mouth, biting gently. She clenched around me and came with a sharp cry, pussy pulsing. I kept fucking up into her through it, chasing my own release.

When I was close she slid off, dropped back into the passenger seat, and took me in her mouth again. Two strokes later I came down her throat, hips jerking, her hand milking every drop. She swallowed, wiped her lips, and smiled at me in the dark.

"Thanks for the ride," she said, pulling her tank top back down like nothing had happened.

Lauren stayed quiet on the drive back, legs still parted, shorts damp where my cum had leaked out of her. The car smelled like sex and sweat. She kept glancing at me, a little smirk on her lips every time the streetlights caught her face.

When we pulled up to her dorm she didn’t move right away.

“Seriously, thanks again Ethan.” She says. “You really helped me a lot tonight.”

She left my car and I watched her walk to her dorm room.

The drive back to my dorm was quiet and reflective. I couldn’t believe what I had just done. I never thought I’d ever be unfaithful, but my cock was just inside another woman. Sarah would be devastated if she ever found out.

I go back to my room and lay down. Staring at the ceiling until I slowly daze off into sleep.