But Monica didn't notice how I looked at our friend. And so, Tuesday passed without incident.

Wednesday was more of the same.

On Thursday, Monica managed to find an extra ten minutes before afternoon practice. We snuck out to my car and we had a quick blowjob before heading off in our respective directions.

And then it was another Friday night game night.

Once again, we had an away game. Once again, Monica, Ellie, and Nate all drove with me in my car. Once again, I played like shit.

Once again, our team won and the girls wanted to get frisky in the car before we went home.

This time, Monica gave the directions to a quiet place to park. I cruised along, fighting every second to keep my focus on the road while

Monica's hand was busy jacking my dick. I was already used to Monica's fetish for fondling me while driving. But today, twittering with sexual anticipation and half-thinking about Ellie, my self-control was already in shreds. The physical distraction would ordinarily have been enough to put us in danger of crashing. But the mental distraction made this short trip a near-suicidal decision.

Monica's soft hand, so familiar, felt so incredibly good. And yet I was haunted by the memory of what the inside of Ellie's pussy felt Like. I couldn't help but fantasize even while my girlfriend was giving me a handjob.

Even after we parked, and both girls bent over to start blowing their respective dates, my mind was still wandering.

After last week, Ellie and Monica had agreed that the whole “swapping” thing was a one-time occurrence, to get the curiosity out of the way.

And so despite a part of me yearning to reacquaint itself with the raven-haired girl's lithe body, I'd accepted that I needed to make myself happy with the gorgeous redhead who currently had her lips wrapped around my cock.

I filled my head with all the happy memories of my time with Monica, willing myself to forget the cheating and think only of the sweet girl who'd been my girlfriend all these years.

“Oh baby, you're so good," I crooned to her as her head bobbed up and down. And in the end, when she swallowed every drop of spunk I offered up, I pulled her to me and held her tightly. It was a rare tender moment for us.

I was therefore quite surprised when I felt the tear roll down her cheek.

I leaned back and looked into my girlfriend's eyes. "What's wrong?”

She sniffled once and then said, “Nothing.” And with her trademark fire, she steeled her expression and asserted control of her emotions through sheer willpower. A sharp smile crossed her face. She glanced into the backseat and we both watched as Nate pumped the last of his load down Ellie's throat.

With the guys now sated, I checked the clock to make sure we had enough time to return the favor. According to our usual script, when it was just the two of us, now was when Monica reclined back across the seat while I slid onto the floor of the car to get a better angle to eat her out. But Monica stopped me.

“No. We're not done with you two yet. That was just the warm-up to make sure you both Lasted Longer for round 2."

“Round 2?" Nate wondered aloud.

Monica's smile turned into a wicked grin. And staring right into my eyes, she ordered, "Switch!"

I was in disbelief. Ellie quickly got out of her door and then the two girls traded places once again. And without looking into my face,

Ellie's hands and lips went straight to my crotch. She crawled across the front seat and slurped my half-hard cock into her mouth, suckling and rapidly reviving me.

I watched as Monica now attacked Nate. She first pressed her body up against his torso, planting a searing kiss onto his Lips. There was no tentativeness or hesitation that marked her first occasion with the star quarterback, and for a moment, jealousy actually reared its ugly head as I wondered if she had secretly Lusted after my best friend in the same way I'd been lusting after hers.

Nate, for his part, was happily enjoying the attention. But I couldn't bring myself to be angry with him. After all, I was the one cheater in the group. It would be hypocritical to feel truly jealous.