Do I Wanna Know, by The Arctic Monkeys

The thumping bass drum kick of "Do I wanna know" starts pounding through the stereo. When the groove hits, you look over at Tara. She's biting her lip and bouncing her head. The streetlights are reflecting off the pale skin of her cleavage.
"Mmm... this song... it's so sexy..." she climbs into your lap, straddling you. Her tongue finds its way to yours, and she runs her hands through your hair.
"Doesn't it just make you want to fuck, James?"
Indeed.
You answer by sliding your hands up inside her shirt from the sides, peeling it upwards and revealing her black bra and the familiar mounds beneath.
"...cause there's this tune i found that makes me think of you somehow, and I play it on repeeeat..."
You reach up into her skirt and pull her thong down, and she leans against you for a second as she extricates it. It gets tossed onto the passenger seat.
"Make love to me James..." she reaches down to free your cock. In a quick second, she's pushing down onto your throbbing pole.
Didn't you tell yourself you were in trouble with this girl?
"Ooh baby..." you unclasp her bra as she slowly grinds on your dick, and once the titties are free, you start sucking away.
"Yes, James...yes daddy..." she pulls your head tighter against her tits, and you bite her nipple gently as you get two handfuls of her ass to help her with her rhythmic dance on your dick.
"I'm sorry to interrupt it's just I'm constantly on the cusp of trying to kiss you..."
Your dance builds in tempo slowly.
"James..." her breathy whisper is erotic and intoxicating, and the thrum of the bass is ringing out in time with your sex rhythm. Tara reaches down to recline your chair, and starts riding hard, bucking and bouncing and sucking on your neck.
"Don't...don't give me a hickey, Tara!" she stops, giggling.
"Sorry..." she kisses your lips, and starts to moan in higher and higher pitch against your mouth.
"I'm going to cum...make me cum, James." Your hands on her hips really help her dig deep, and in another moment, she starts shaking.
"Mmmmmmmmmmmmmmmaaaaaaaaahhhhhhhh!!!!" Her quivering pussy grips your cock hard. You're close, but you don't cum.
Tara rolls off. When her head clears, she begins to suck your dick, tasting her own juices as she works to get you yours.
"We don't want to mess up your beautiful car, James." She's stroking and looking at you over your cock. "Cum in my mouth."
You nod emphatically as your orgasm hits violently. A single strand hits her cheek before she can get her mouth around your head and take the rest in.
"Jeeezzzzzzzzzzzzz.........." you blank out as you shoot a load into Tara's warm mouth.
"*gulp* mmm...." Tara wipes her cheek into her mouth, then swallows that too. "Do you have any gum? Or a mint?"
"Cum breath? haha.. glove box there should be some breath savers."
Tara pops a couple of mints, then climbs up to kiss you passionately.
"You're so sexy, James. The best lover I've ever had."
"The oldest lover, I'm sure.." you aren't sure you could even walk right now if you had to.
"Yeah, but I don't care." She kisses you again. "You're a hunk."
"Stoppp..." you know that you aren't.
"You don't need to look like Channing Tatum, James. It's not just about looks. It's about confidence... and you have that... you're sexier than any guy I've ever been with because you know what you want, and you know how to get it."
"...Jenna...used to say stuff like that." Reality and guilt are creeping back in now. What are you doing? You put a hand over your eyes. "I'm dead meat. I'm so fucking dead."
"Hey... please don't say that. I know this is wrong. I don't mind sharing, like I said. I love Jenna, too."
" ' If you chase two rabbits, both will escape you.'" you quote the old proverb.
"I wish...." she's starting to get sad again... "I wish there was a way to make this okay. It's made me happier than I've been in so long, to share this with you. I know it can't last forever, I just want to make it last as long as it can because I don't want it to end..." she curls up on your lap.
"I know."
You don't know what to do.
Suddenly, your phone is buzzing.

"Hey, Jen."
"Hey we just got back, where are you?" her voice is a little slurred. She must have had a good night.
"There was a little incident at the Off-Kilter, so I went to pick up Tara. Her car wouldn't start."
"Incident?"
Tara grabs the phone. "Hey Ms. Jenna. Sorry. Some creep at work tried to touch my... private area, and when I threw a drink on him, my boss got mad at me and sent me home. But it's okay." she switches on speakerphone. "James tore him a new one. He was bringing me back home to your house, but I asked to sit at the park for a while to calm down, and I lost track of the time."
"We'll be back in 3 minutes Jen." You start the car.
"Ok! when you get here, Tara, we can talk about what happened if you want."
"Thanks, Jenna. I'd like that..." Guilt plays of Tara's face.
Done is done. You head home, and try not to let the guilt consume you.