"Who is coming to this party then, that I know I mean," asked Jayne as she fixed her makeup.

"The usual suspects. None of the ones you like and most of the ones you don't. Including your favourite of course," replied John knowing full well what Jayne's response would be.

"Oh no, not Ben. He's such a pain. He's so boorish and he insists on 'flirting' with me. I've told him exactly what I think of him but he still keeps coming on to me. Can't you stop him?" Jayne was pulling her best sexy, pouting, begging face but to no avail.

"You know full well I can't unless he actually DOES something instead of just talk. Even then it'll be difficult. In case you've forgotten, he's my boss so just keep giving him the brush off. I don't like it much myself you know."

"I wouldn't mind so much if he was good looking," laughed Jayne aware of John's insecurity regarding Ben's desire for his wife.

"Don't you start! Besides, are you sure Mary wore quite so much makeup, or wore such a skimpy outfit, or stockings for that matter."

"Well of course not but it's an adults only fancy dress Christmas party so I was hardly going to go like Mary from the school nativity play now was I. And it wouldn't look so silly if you'd got the Joseph costume you was supposed to get."

"I told you, it wasn't my fault, that one needed repairing after a mishap at a party the night before. They only had these Santa costumes left."

"Well, it'll have to do. It looks rubbish though."

"Any chance of a pre-party blowjob for Santa? He's feeling really horny." John knew the chances were practically zero but still worth a shot he thought.

Jayne turned to face him with one hand on her hip and a finger wagging in his face, "If you think Mary giving Santa a bj is anywhere near acceptable then you're fantasies are far worse than I ever imagined." Turning back to examine herself in the mirror, Jayne only had small tits but they were firm and provided enough cleavage in the right outfit and with the right bra. It's safe to say that Mary probably wouldn't have shown as much boob off as Jayne was but she was more than satisfied with the look. She shot him a sidewise glance, "Maybe later, if you're a very very good Santa. Come on, we'll be late."

***

As it turned out, Jayne was enjoying the party far more than she expected to. John had been quite attentive and had not gone off to talk to people too much leaving her to her own devices. Most of the men seemed to appreciate her outfit and some of the women didn't. She gathered that much. Perhaps a slutty Mary was a step too far after all! The buffet had been good and the drink was flowing and though she should know better, she'd overdone it slightly with the Prosecco. For whatever reason, bubbles made her a little lightheaded.

John had wandered off to talk to somebody or other (she didn't pay too much attention) and now she was in search of a bathroom. Apparently, there was an ensuite off one of the bedrooms that didn't have the queue that the main bathroom did. It was a large house and it was certainly in the quieter part of the house well away from the party. As she came out of the ensuite, the bedroom door opened and in came someone, closing the door behind them. There was only the soft light from the bedside lamp to see by but enough to recognise Santa by.

"You do look ridiculous in that outfit, but you've been a good Santa and I keep my promises," stated Jayne. With that, she walked over to Santa and knelt in front of him. "Keep the noise down and if you hear anyone approaching then make yourself decent and do it quickly."

There wasn't much light so she fumbled a bit with Santa's belt and trousers before managing to pull them halfway down his thighs. She rubbed his rapidly hardening cock through his pants, "Has Santa been good? Does he deserve his treat?" purred Jayne.

Santa paused, strangely torn so it seemed to Jayne, before nodding yes.

"Let's get this over and done with, I can't see you lasting long, you don't usually," teased Jayne as she pulled his now erect member out from the confines of his pants. As she wanked it a few times to get it fully erect she remarked, "Given what little self-control you have, I'd better not overdo this or it'll be a handjob and not a blowjob."

Santa was now standing very proud and she slipped her lips round the tip of his cock and began bobbing her head back and forth. There were several confounding factors; the gloom, the eroticism of the situation, the prosecco but it did occur to Jayne as she bobbed back and forth that Santa was longer, thicker, harder and had more stamina than she expected. She was even more surprised when Santa placed his right hand on the back of her head to firmly guide her in her sucking.

This was taking a lot longer than expected, John rarely lasted more than a minute but he was keeping the noise down as instructed with only a few grunts and now a yessss. Jayne was holding his cock by the base with her left hand, cradling his heavy balls with her right and sucking for all she was worth. She sensed he was getting closer as he reached to steady himself on the wall with his left hand whilst his right remained on the back of her head and was now thrusting forward to such an extent that he was more fucking her mouth than being sucked.

A few stifled grunts forewarned the inevitable. It had taken much, much longer than she'd imagined but Jayne was not prepared for what happened next. It stiffened, stood even prouder which forced her to raise herself slightly, the balls contracted, buttocks clenched and with a last thrust and a grunt a large volume of thick creamy cum was deposited into her throat. This was followed by another, and another until Jayne lost count. It must have been six or seven thrusts with a load of admittedly diminishing cum deposited with each one. She had instinctively tried to swallow it all but the force and volume had been such a shock that it was simply not possible. She could feel it dribbling out of the corners of her mouth and when he finally withdrew she greedily licked her lips. As she did so she turned to look at herself in the mirror. What a shock she got! Clearly, she'd crossed a line but seeing herself in the mirror brought it home with a crash what a total slut she looked like and had been. Dressed in her slutty Mary outfit, kneeling before Santa with his cock hanging out, licking spunk from her face, and a look of lust in her eyes, Jayne was horny.

Santa turned Jayne's head back towards him and started gently wanking himself in front of her face. Jayne instinctively opened her mouth and stuck her tongue out placing in just under Santa's slightly softened but still impressive phallus. A few pumps later Santa, wanking with his right hand and holding Jaynes head with his left, let out one last long satisfied groan and pumped two ropes of cum onto Jayne's waiting tongue. Jayne took it like a slut before sucking him deep to drain his cock swallowing every drop.

With that, Santa made himself decent, buckled his belt and left, with one last look to take in the site of slutty Mary, still knelt on the floor, gently fingering herself to a restrained but powerful orgasm. Jayne had been desperate to rub herself soon after going down on Santa but she didn't have a spare hand, having felt compelled to focus on servicing Him "Fuck," she thought to herself, "John was hot tonight. I've never known him get so hard and proud or last so long and cum so much." Jayne made a mental note to see if she could buy the costume from the rental shop. Worth its weight in gold if it produced that performance from John again.

After cleaning herself up in the ensuite Jayne hurried back to the party, It was a few minutes before she found John again. "Hey big boy, why don't we make our excuses and scoot home to carry on where we left off?" whispered Jayne in his ear.

"I've just had a great chat with one of the guys in head office. Sorry for deserting you. What have you been up to? Besides, carry on what?" enquired John, leaning into Jayne to kiss her firmly on the lips, his tongue darting in out. "I don't know about anything else but it tastes like you've been overdoing it on the anchovies."

Jayne was stunned. Was he being serious or was still playing the game. Should she risk asking him outright? But what if ....... What would his reaction be? It would certainly explain a few things. Now she thought about it, she knew it hadn't been John and she knew, if she was honest, that she knew it wasn't John at the time. Too many things just weren't right. His length, his girth, his stamina, his load and, more importantly, his dominance. She was clinging to John, which he mistook for intimacy, but in reality, was to stop her collapsing to the floor. It was then that she spotted the 'other' Santa across the room; very similar build to John wearing an identical costume. Seconds after he left, her phone pinged to alert her to a message. She nervously retrieved it from her bag, The massage was from someone calling themselves 'Bad Santa' and read "message me for more slut". She felt her knees wobble and the damp patch in her panties get even damper. She didn't even hesitate, "When? Where?" she replied, before reaching up to give John a long, deep, tongue entwining snog.