A recognizable voice

The woman's voice sounds familiar, not that you know it personally, but you've definitely heard it before somewhere. You stop mid-thrust in Kate Beckinsale as you hear the other bathroom stall door open and the woman's heels clicking against the tile, stopping outside the stall you're in.

You decide then to deactivate your invisibility ring and you hear gasps from in front and behind you. Kate's seeing you for the first time and she looks down to see the cock that's still inside her.

"Oh my god, you're him," you hear the woman outside the door.

You're pretty sure you know who it is now and you pull out of Kate, who's not too disappointed since she's already had her orgasm, and you turn around to unlock the door. Opening it, you see Kristen Bell standing there in a beautiful black gown that shows off her perky breasts and ample cleavage.

"Yup. And you're Kristen Bell," you remark, hands on your hips and your erection sticking out prominently.

Kristen peers behind you to see who the woman is, and she has a look of surprise on her face when she recognizes Kate Beckinsale, who's thoroughly embarrassed.

"Oh gosh," you hear Kate say and she pulls her dress down and quickly squeezes pass you, running out of the bathroom without speaking to you or Kristen.

"Wow. You just brought her here for a quickie?" Kristen asks. She looks amused.

"Uh, no. She was masturbating when I came in, so I decided to help her."

"Oh."

"Come to think of it," you rub your chin, "you were in there for a while too. What were you doing? You must have seen that scene with Gal and me."

Kristen's face is now scarlet and she looks down, avoiding your eyes but resting her gaze on your hard cock that still wet with Kate's juices. She retreats as you take a few steps towards her, until her back is against the wall. You're now standing right in front of her, staring down at the top of her blonde hair as she still continues to look down. You sniff her hair and she smells nice.

"Look, dude. I'm sorry I interrupted you," Kristen says.

"It's okay. I don't mind. But I didn't get a chance to finish with that British gal..."

"I'm sorry," Kristen says softly.

You grab her by the shoulders and turn her around. "Please," she says, knowing she can't escape you now.

You back up a little and tell her, "Bend over and put your hands on the wall."

Kristen does as you command and you start to lift up the back of her gown until its resting on her lower back and you see a matching pair of black panties. "Can we at least go into the stall? What if someone walks in?" she asks.

You ignore her and grab her pussy through her panties, which you realize are damp. "What were you doing just now when you heard me and Kate fucking?" you ask as you pull her panties down and let them drop to the ground.

"I was..." Kristen pauses when she feels the tip of your cock pressing against her lips.

"Yes?"

"I was touching myself. That scene was so fucking hot."

"And what were you thinking about while you touched yourself?" you ask, slowly inching your cock into her wet pussy.

"Your cock..." Kristen moans, and with that, you slam all the way into her and she shrieks in pleasure and pain at the same time, as you hold her hips and start fucking her vigorously. A couple of minutes in, the bathroom door opens and Brie Larson walks in. Her eyes are wide and she stops as she sees you fucking Kristen Bell against the wall. Kristen instinctively squirms and panics when she sees Brie, but you hold on to her tight and keep fucking her.

"It's okay, we're almost done," you say to Brie, who doesn't know what to do. A few seconds later, you groan and cum inside Kristen, who's now looking away from the door to avoid further embarrassment. When you're done, you pull out and wipe your cock clean using her gown, and put your pants back on. She remains there with her hands on the wall and panting from the hard fucking, as you walk over to the sink to wash your hands.

"Go ahead," you say to Brie in the mirror and she awkwardly walks pass Kristen into one of the stalls.