Your girlfriend didn't know it was you under the mask.

Every year, as Halloween approaches, your girlfriend eagerly anticipates the chance to wear lingerie and attend wild parties where she can let off steam from the stresses of daily life. You've never been a fan of her seductive costumes or heavy drinking, but she always brushes off your concerns with a dismissive laugh. Despite your discomfort, she insists on attending these parties without you. Every time she goes out alone, a nagging worry creeps into the back of your mind - what is she up to while she's gone? And every time she returns home the next day, with a satisfied smile on her face, that worry only grows stronger.

This year, fed up with feeling left out and suspicious, you decide to surprise her by going to the same party in a costume that hides your face completely. As you watch from the shadows, your stomach twists with disgust and anger as you see your girlfriend flirting shamelessly with numerous men at the party. The more she drinks, the bolder she becomes, eventually engaging in passionate kisses with random strangers. As the night wears on and inhibitions are lowered, you witness your girlfriend descending into a drunken frenzy of sex, eagerly allowing anyone and everyone to take advantage of her.

Your heart breaks as you realize that this is who she truly is when you're not around - someone who would betray your trust for fleeting pleasure with strangers.

You couldn't believe what you were seeing - your girlfriend was being tied up and spit roasted by two men at the party. Her moans filled the room as she was fucked by both of them simultaneously. One man thrusting into her mouth, while the other stretched her pussy. It was too much for you to handle. Your body reacted to the scene, your arousal growing as you watched your faithful girlfriend being used by strangers.

You had the impulsive idea to confront her, but then you realized she didn't even know you were there. A sly thought crossed your mind - what if you joined in on the fun? She wouldn't even know it was you. With your mask still hiding your identity, you made your way over to her and pulled down your pants. She eagerly grabbed onto your cock, no idea that it wasn't her boyfriend's. The sensation was exhilarating.

As she sucked and licked at your hard dick with an intensity like never before, her head bobbing back and forth in a frenzy, you couldn't help but moan under your mask. The feeling of her warm mouth on you, combined with the sight of her being taken by another man, added an extra level of pleasure.

She had never sucked your dick with such enthusiasm before. Perhaps it was because she didn't know it wasn't you. But in that moment, it didn't matter to either of you - all that mattered was the intense pleasure and excitement coursing through your bodies.

You watched as she pleasured another man with her hand, then looked up at you in your mask and said "Fuck me." You circled around her and thrust into her already-used pussy. It was full of another man’s cum already and as you moved inside of her, she pulled another masked man to her and began to suck his cock. You felt a mix of emotions as you continued to fuck her; pleasure from the tightness of her pussy and arousal from watching her with another man.

But then you noticed that the other man had taken off his mask, revealing himself as one of your coworkers. Shocked, you realized that your girlfriend was now sucking your coworker's cock while you fucking her. It was a sight you never could have imagined, and it left you reeling. However, you couldn't take off your own mask for fear of your girlfriend discovering your true identity.