Deny Priya what she wants.

“You know what?” you told Priya, grabbing her wrists and holding them down to her sides. “I know it’s your birthday, and you’re used to getting your way, but no means no!”

Priya glared at you like a petulant child. “You know what?” she shot back. “Being told no…” her demeanor suddenly shifted back, “gets me sooo hoorny!” Her hands slid between her legs and she leaned over to kiss your lips. You reared back so that she fell onto your chest. You let go of her wrists to help her up again but she took the opportunity to slink down and move her head onto your crotch!

“Priya!” you shouted indignantly, trying to pry her off. She sucked through the fabric of your pants, moistening up your pants with saliva. You could feel the warmth of her mouth through the thick layer of denim and shifted in your seat uncomfortably. You managed to pull her off before she could go any further.

The birthday girl sat back on the other side of the backseat, revealing herself to you unabashedly with legs splayed and arms outstretched, resting on the sides. “Come on, {First Name}, don’t tell me that you’re not interested, because we all know that’s not true…” Her fingers slid down the folds of her pussy, caressing them enough to glisten with her juices. “Why don’t you come over here and have a taste?” She plunged two fingers inside and pulled them out. Even from where you were sitting, you could tell that it was drenched in her fluids. She dipped her fingers into her mouth and sucked as if she were sucking off a dick.

It would have been easy to give in to desire, but you had chosen to stick to your principles. She was using whatever tactics she had on hand to get her way and you were not going to fall for them.

“I’m sorry, Priya. I refuse,” you told her bluntly.

“Aww… but I want you so baaaad,” she moaned, sucking on her fingers while her other hand dipped into her well. Her body began to gyrate to the finger motions, up and down.

You shook your head and turned away from her to avoid her mesmeric display. You felt her leaned up against you.

“I’ll be your little cum whore… you get to do what eeever you like to me!” She offered in a sultry voice. “All my holes are open for your needs, they’re wet and juicy and aching to be used…”

You bit your lower lip and folded her arms over your chest.

“But I neeeeed you, {First Name}! I need that big fat cock shoved up my pussy. Fucking me like a dirty whore!” she pleaded.

You gripped yourself so tight your knuckles went white, and curtly shook your head ‘no’.

“Fine,” Priya pouted. “I’ll just have to do it myself!” She gruffly turned around and plopped herself onto your shoulder.

With her back to your shoulder, she spread her legs, resting them over the side of the car and went at it with herself. She pumped her fingers in and out until they made a wet shlicking sound and then she still went at it. She moaned and panted, heaving her heavy breasts up and down, cupping and groping them with her free hand. She turned her head and moaned hoarsely into your ear, rubbing in what you were missing out on.

Cars passed by like streams of light, oblivious to the debauchery going on in the convertible. From what you could tell, Priya made herself cum at least twice by now. More cars zoomed by as traffic started to get thicker. There was a honk from a nearby vehicle.

“EEEK!” Priya cried, rolling into the leg room of the backseat. “Did he see me?”

You turned your head in the direction of the horn. It was an impatient driver wanting the car in front to take the turn.

“Just traffic, babe,” Paul assured Priya.

Relieved, Priya poked her head up. There were more cars rolling up at the stop light, so she settled into the backseat beside you on her best behavior. She hugged up to the side of the door to cover herself from the outside looking in. This didn’t protect her from the driver’s side though. From the oncoming lane, you noticed a few drivers do a double take at seeing the naked backside of a young woman pressed up against the side door. There was another car honk, causing Priya to jump in surprise.

“THAT one WAS for you!” you pointed out.

Priya turned and gave a look of horror as she realized what had happened. She huddled up and hid her face, crying out, “Oh my GOD! Drive faster, Paulie!”

“I can’t! It’s a red!” Paul said.

Feeling bad about gloating over your friend’s plight, you pulled off your shirt and gave it to her. She gratefully pulled it over her head and tugged it down as low as it would go, even though it would ride up above her hips every time she tugged down. She resorted to hugging it like a security blanket. Just a moment ago, this woman was more than willing to flaunt her naked body for you in all its glory, yet here, in front of strangers she became a timid little dormouse. The rules of your suggestions seemed to be up to the subject.

The light went green and Paul sped off. After a while, the traffic died down again and you were on open roads. Still, getting caught had turned Priya’s mood, she was no longer a ravenous cum slut. It was the same reaction as when her sister caught her in the washroom.

“Are you sure you still want to do this?” you asked Priya, hoping that the experience shook her back to reality.

“Well, now that I think about it, maybe it’s not such a great idea after all…” Priya admitted. “But we should head to the school, I have a spare outfit there.”

Finally, you arrived at the school. Paul parked next to the entrance with the rest of the parking lot empty. Priya snagged her panties from his back pocket and put them back on. You tried the front door, but it was locked.

“We’ll have to go through the side door,” Priya said. “I have a key…” She jingled them triumphantly and led the way.

Having never attended this university, you had to rely on the medical student to lead the way. Being a teaching assistant, she had access to certain parts of the school that normal students did not, including a shared office where she kept a spare set of clothes.

“School is so different at night. So eerie,” she noted as you passed through the empty corridors.

“No one around to catch you,” Paul added.

“We could do whatever we wanted and no one would know…” Priya concurred.

The couple shared a look. Your stomach sank.

In a flash, Paul and Priya darted off!

“Hey!” you cried, chasing after them. It turned out that the sobering effect of being caught had worn off and the two were up to their old tricks.

Suddenly things went dark and you had to halt before you ran into anything. You pulled your shirt off your head and looked around. They were gone. You tried to listen to the sound of footsteps but Priya was barefoot and Paul was in sneakers. You couldn’t hear anything!