"She needs it badly, so you might as well be the one to give it to her."
With that simple statement, my loving wife had started the cavalcade of events that led to me being out here, in an alcove behind the banquet hall's kitchens, dry humping her best friend up against a bare concrete wall. Siobhan's flaming red and black dress was hiked up above her ample ass, her lacy black panties begging to be torn asunder, allowing my hands to freely roam her bountiful flesh, as our tongues twirled together in each others mouth, Siobhan's fingers tugging my hair as she held me there with desperate hunger.
We did not stay that way for long. It was inevitable that Siobhan broke the kiss, her hands pulling my head back, and shoving my nose down toward that tanned cleavage she was so proud to display. I instinctively licked away the rivulets of perspiration dotting her upper slopes. All the while, my cock was stiffer than it had been in years, rubbing against Siobhan's wet steamy cunt, separated only by a few thin layers of cloth.
"Emily is such a lucky girl - are you sure she's okay with this?" Siobhan moaned, as one of my hands moved without me consciously willing it, following the curve of thigh from ass to cunt, pushing aside the flimsy lingerie, probing labia, pausing before penetration.
I lifted my mouth to whisper into her ear.
"It was her idea - she knew you needed it. I did a quick double take when she said that, I must admit, not quite believing what I seemed to be hearing - my loving wife was suggesting that I get something - not quite clear just WHAT - going with her best friend."
Siobhan laughed lustily, right from her womanly belly. "Trust Emily not to draw limits."
She pulled her bra down, popping a tit loose, exposing an erect nipple to my lips.
It had been a typically boring family wedding thus far. We had a lot more fun a few weeks earlier taking Siobhan shoe shopping. My girl and her girl both loved style, and enjoyed feeding my shoe fetish. They really were amazing. Siobhan had worn the most fabulous shoes to the wedding, along with smoky seamed stockings which drew my hungry eyes toward her shapely calves, a fact my wife could not help but notice. When we had found our table, her hand had brushed my hard cock through my suit pants, and she had turned to grin at me as if pleased to confirm that Siobhan had excited me. My wife loved my voyeuristic streak, because it always made me extra hot for her later.
Unfortunately, Siobhan had gained some weight since buying her dress, and what had been designed to be a tight wrapper around her voluptuous body risked being a sausage casing. Siobhan did not seem to mind, as she knew that most guys were just tantalized by the mammoth cleavage spilling out of the plunging bust line. I had already complimented her on the sexy lace bra. First though, I had feasted my eyes on the exquisite, somewhat exotic makeup - deep dark red lips to match, lined in a darker shade which matched her eye liner. Eye shadow the same rich wine as the dress. Her abundant curls swept up in a pearled comb. My wife had giggled in her typical style and asked if I needed a hankie for the drool.
Siobhan in turn had laughed, relaxed, plunged into the banquet room and had a few drinks.
It was a typical boring reception, made more so by the fact that we barely knew the happy couple, so the interminable after dinner toasts droned on. Even the bride's unfortunate strapless dress did not help. Normally, the possibility that her chest might be accidentally bared would be entertaining, but there was something child like about this doughy bland young woman that just made me restless, muttering about how ridiculous it all was. I had very little chance though to become restless in my chair, as my wife's hand slowly drifted from my knee, to my upper thigh, to my inner thigh and by the eighth or eightieth time the bride kissed the groom, she was slowly rubbing my bulge through my suit pants.
At first, I was startled, bolting upright in my chair.
"Just keeping you awake," my wife whispered into my ear, teasing me with a quick nibble on my ear. That was extra startling, because in our relationship, we played a lot of rough sex games, and I was a biter, but she tended to be the one to receive the marks.
"And a creature is stirring," she giggled, her palm resting on top of my cock, feeling the blood filling my shaft.
The master of ceremonies was droning on again, but I had no idea what he was saying. My attention was focused on the firm rubbing in my lap. By the time the DJ started the first dance music, my prick was fully engorged, pressing up against the fabric of my pants. I did my best to sit stone faced, watching the happy couple steer around the floor, while Emily's hand was busy rubbing my hardness through my pants. I began to wonder whether she would be bold enough to undo my zipper right there, hidden just by the table cloth, when Siobhan plopped into an empty seat on the other side of Emily. Siobhan's breasts shook where they were exposed out the top of her dress, taking a bit longer to settle than the rest of her.
"You're falling right out of that dress, girl," Emily laughed, a bit drunk, even just on three drinks - she was never much of a drinker.
My cock throbbed under Emily's grip as I dared to look at Siobhan without staring. No nipples had slipped, but her lacy bra was almost fully exposed, the silky fabric of the dress not having the strength to resist the push and pull of her huge mammaries. Bare flesh was visible above each cup, so much that I imagined nipples barely holding the cups in place. The valley in between her tits could have contained a whole family of moonshiners. I contemplated the probability that her nipples would need to be hard not to slide up over the edge of the bra. She was glowing with exciting.
Emily matter of factly reached across and hiked her pal's dress up, tucking those boobs back into place. My cock started to protest at the absence of my wife's hand, but it was mollified quickly as Siobhan stood up and shimmied her body, shaking her dress into place. The DJ's light show illuminated her miniscule nose stud, which effectively highlighted her warm smile. No one could ever doubt that Siobhan was a fun loving girl.
"Too bad she can't keep a man," Emily sighed as Siobhan teetered off barely balanced on her spikes, "But they just never see the great gal behind the huge tits."
"Well, no denying they ARE huge tits," I agreed, earning Emily's elbow in my side - though her hand still cupped my swollen member. "And she IS a great gal. Maybe you should just share me."
Emily laughed, a bit louder than usual.
"Well, she just wandered down the wrong hallway in search of the ladies' room," Emily observed."Which means that she's really drunk, so likely wouldn't be fussy."
"Because if she WAS fussy, I wouldn't be good enough?"
"No, because then she would know that she deserves more than sharing."
Emily's fingers slid all along the edges of my cock where it was trapped within my pants.
"You can't be serious..." I stammered a bit.
Which was when Emily said that Siobhan really needed sex, and it might as well be me. To emphasize her point, she slid her hand down my thigh, gently caressing my balls, but then curved a pointed fingernail around under my scrotum. The shock caused me to jump a bit up off my chair.
