Swallowing Dan

If the first scene sounds familiar it's because I stole it from an older story that I deleted last year. The rest of the story moves in an entirely new direction, and should please readers who crave a cheating girlfriend doing her hot, cheating-girlfriend thing.

Montana's glossy red fingernail tapped at the six-dollar vodka collins, which Pierce had just lined up beside two red wines. "This Pink Shirt's order?"
"Hold on, I still need the margarita for his table."
What she did next left him completely slack jawed. She spit directly into the vodka collins, and then spun her finger daintily through the ice until it disappeared amongst the seltzer bubbles.
"Our little secret,K?"
He couldn't believe it, his girlfriend routinely exercised a temper, but spitting in someone's drink was entirely beneath her. While he mixed the margarita to compete the order, she made a quick trip to the lady's room, and almost as soon as she left, Pink Shirt strolled up to his bar.
"Is that Montana Sparks?"
"Yep,"
"Knew it! That explains why she hasn't looked at me all night."
He was a good sized cat, six-foot-one and roughly one-ninety, making him about dead even with Pierce. He was an attractive man with a slight resemblance to Ryan Gosling, and looked about twenty-five, the same age as Montana, so Pierce asked if they were possibly classmates.
The guy pointed to the bathroom door. "Cheerleader!" He then turned the finger on himself. "High school quarterback." He glanced at the vodka collins. "This mine?"
As he reached for it, Pierce covered the glass with his palm and dragged it off the bar. "Let me get you a fresh one."
"Why,did she put something in there?"
"Let me just get a fresh one, OK."
"Please do. Un-freaking-believable!" He appeared more amused than mad, and as Pierce poured a fresh drink he began to laugh. "Women never forget, do they?"
Montana returned, but the guy headed back to his table the instant he saw her coming.
"What didhewant?"
"Just curious if your name happened to be Montana."
"Shit!"
"I'm guessing you two had something?"
"Not a chance!"
"Drinks are up??you'll have to give me the details next order."
"I really don't want to go into it now. Actually, I don't ever intend to go into it. He's getting a special drink, that's as much as you need to know."
She unknowingly took him a fresh Vodka Collins, and if she wasn't his girlfriend, Pierce swore he would've fired the insubordinate hostess. But as he watched her dynamite thighs disappear into the crowd, he realized insubordinate or not, those legs were irreplaceable.

The reception dinner wrapped up around eight and as the caterers cleaned the plates, Montana came up and stood idly at the bar, waiting for Pierce to fill the first tray of stemmed champagne glasses with Martini