Unfortunately...

"Go!" Miranda announces, and Tom gets to work. His fingers quickly find Sarah's clit."Don't worry, slut. I know where the fun button is..." his other hand reaches up to pull Matt's shirt up and over Sarah's rack, exposing her big round tits with nipples hard and at attention. He starts to roll one of them in his fingers while his other hand massages the clitoris with more expertise that you expected from a douchey jock. Sarah's breath starts to come in shallow gasps.
"What's the matter? Didn't think I knew how to please a girl? Why do you think they always come back for more..."
Nicole is staring at the scene, and moving her own hips involuntarily. "Oh, no..." she whispers, as if she realizes that she's in trouble from looking at Sarah's face. Sarah is starting to pant, and squeeze her eyes shut at intervals. Tom's fingers go further south, curling inward into Sarah's honeypot.
"Ahh...." a moan escapes her parted lips. You look across the room to see that Miranda is exploring her own snatch openly, while Matt gropes brazenly at her clothed tits. He seems unable to look away at the spectacle.
"T-two...minutes left..." Miranda announces, looking as if she might not last that long herself. Sensing this, Matt pulls your shirt up to expose Miranda's tits, pinching at her nipples as she starts attacking her pussy with her fingers in tandem with Tom's fingers on Sarah's snatch.
"Oh, fuck..." Sarah's eyes go wide.
"No.." Nicole breathes, though she herself seems quite turned on.
"I'm...sorry, girlie.... but he's...got me....ah.....OH FUCK! AHHI'MMM CUMMING....." Sarah arches her back, leaning back to frantically grab Tom's head to pull his lips to hers as her body shakes and shivers.
"Fuck..." you whisper.
"Fuck..."Nicole whispers.
"Fuuuuck!!!" Miranda shouts, having her own orgasm on Matt's lap.
"Haha.... like taking candy from babies..." Tom laughs as Sarah slides off his lap into a puddle on the floor, still twitching and moaning. "Nicole, come on over, and help this one up to her knees." He pulls at his button and zipper, quickly freeing his considerable cock from it's confines. He's not that much bigger than you, but it's clear that he is the larger. Matt groans.
Reluctantly, though perhaps not as reluctantly as you would expect, Nicole slips off your lap and makes her way over to kneel in front of Tom, picking up Sarah from the floor where she lays giggling.
"Don't be shy ladies, there's plenty for both of you."
"Ugh, I can't watch this..." Matt groans. Miranda swivels around on his lap to face him.
"I'll give you something else to watch, Matt." You can see all of her ass as she straddles him: the desire to reach out and take hold of it is strong. Spitting noises turn your head back towards Tom's chair. Sarah has wetted Tom's cock liberally, and is helping Nicole with her stroking technique while sucking on Tom's balls. Everything happening is both frustrating and arousing, and as the girls begin to suck on Tom's cock, and Miranda begins to dry hump Matt to keep his attention away from his crush giving Tom head, you can't help but fish a hand inside your own pants to rub your hard cock.
The girls go back and forth, first Sarah sucks Tom's balls while Nicole works the head tentatively with her lips and tongue, and then they swap. Occasionally, they kiss each other while double stroking, and at one point, Sarah puts her hand on the back of Nicole's head to help her go deep. "Guys like when you go deep, Nicole."
"Fucking right they do." Tom agrees, adding his own hand to help. Nicole makes a guttural croaking sound as she gets all the way down, and you can actually see her throat bulge with the intrusion of Tom's cock head. You pull your cock out and start stroking, heedless of who's watching. Miranda has your shirt pulled up over her rack, exposing her gorgeous arching back, and Matt is motorboating while grabbing her ass with both hands. She's just taking his mind off it...it's ok.
"Good job, Nicole!" Sarah takes over while Nicole catches her breath. Her hands are rubbing at her own pussy. Whatever reservations she had about doing this, she's definitely turned on.
"I can't...believe...I didn't...puke..."
"Mmmhmmmffff...!"Sarah seems to be agreeing, but with Tom's cock in her own throat it was hard to tell.
Just when you wonder if you're going to cum before Tom does, he stands up. "Get ready girls!"
Sarah opens her mouth, pulling Nicole close to her so Tom can hit both of them. He grunts, shooting three long ropes over both girls faces. Nicole gets a big glop directly in her mouth, and she flinches, closing it by reaction.
"Ahh... that's the good stuff..." Tom sits back down, satisfied. Sarah takes the opportunity to clean off Nicole's face with her tongue. Nicole seems stunned, unable to think, unconsciously swirling the cum around in her mouth, before swallowing it.
"It's...not as bad as I was expecting..." she sounds curious and thoughtful.
"Yeah, his isn't bad. I'm kind of surprised."
"Are you done?" Miranda yells over her shoulder, and then pulls her tits away from Matt's face. "They're done. You can stop now." she smiles, assuming her more normal position on his lap. Her eyes go wide when she notices your cock, and she can't hide an interested smile of her own before you tuck it away.

"Okay, give me that hat!" Tom says with satisfaction.