Bodies. Everywhere.
The two women walked into the darkened place, opportune yet brief rays of eldritch lighting illuminating the bodies as the two women watched on. The light lasted just long enough with each flash to show the bodies were pulsating, squirming to an otherworldly tune that emanated through the dark space and threatened to entrance the two as they stared.
"See? I told you!"
"I have to say, this is a HELL of a party Welllko. I'm glad you dragged me along!"
The two friends walked into the warehouse party amidst the throng of dancers, all moving as one to the hypnotic beat. The two girls moved to the bar and sat down on a pair of stools, eyeing the crowd for potential hookups.
"See that one?" Welllko asked Terri. Terri folllowed her arms to where she was pointing and saw a stunning brunette in the middle of the crowd, who was dancing amongst a throng of admirers.
"That's four people; two couples are all sharing the body of one of the girls!"
"She doesn't mind?"
"No, Jeannie is pretty freaky like that. It's her boyfriend in there with another girl, who has her boyfriend inside her!"
"Why didn't you tell me about this place before?" Terri asked incredulously.
"Eh, it took you two a while to come out of your shells, I didn't want to rush you. Now, instead of sitting here ogling, why don't we look for some fun?"
With that, Welllko stood up and grabbed Terri by the hand, before pulling her up and into the throng of party goers. Then, without warning, she dragged Terri into what looked like a photo booth and closed the curtain behind them. Inside the booth, Terri's eyes adjusted and she could see the room was about the sizer of a decent bathroom.
"Strip."
"What?"
"Trust me Terri, strip. I've got a surprise for you!" Welllko replied with a wicked smile, before leaving the booth. Terri sighed, wondering what he'd gotten herself into before deciding to see where this led. Slowly, Terri slid down her jeans and put them into the available receptacle, before sliding her top over her head and doing the same. Once she had repeated the process with her underwear, she started to regret following command. She contemplated re-dressing herself and leaving before noticing a previously unnoticed door had opened. Gingerly, she tip-toed away from the beats behind her into the dark room beyond.
Once inside it took Terri a few moments for her eyes to adjust to the (even duller) lighting. Inside the room was lit by a dozen red candles placed around the room, in the middle was a large bed with an obscured figure sitting on it.
"Hello Terry." A familiar voice cooed. Terry's heart froze as he recognised the voice. It was the same one that made the shocked sound upon the realisation. The figure loomed forward on the bed, so that Terry could see an exact copy of the face he currently wore.
"Surprised Terry?" the real Terri questioned in mock sincerity. "You've kept me waiting you naughty thing, but I can't complain too much. After all, I've had your girlfriend's body - the real one mind - to keep me company!"
"W-what have you done to Terri..?" Terry enquired hesitantly.
"Nothing that can't be undone my dear. Play my game and you'll get her back unharmed."
"If I refuse..?"
"You'll never see her again."
Terry sighed upon this realisation before replying, "...deal."