Looking for Olivia

You notice that you haven't seen Olivia anywhere yet and you're about to ask Nick about her when you 2 step into another big room. It looks the same as the other rooms and there are guests in here as well, although you notice that it's all men here. Or at least that's what you thought. Most of the men are naked and standing in line and it takes you a while to see that the line leads to a small bed. On the bed is a petite woman wearing some lingerie, white stockings and black high heels, but mostly naked. She's facing away from you in the doggy position while a guy fucks her and many are waiting behind him for their turn. On the other end of the bed, some men are helping themselves to the solitary woman's mouth and while you can't see her face, you can see her blonde hair.

"Is that Olivia?!?" you say to Nick, grabbing him by the arm and dragging him to the front of the line. Some of the men curse at you and tell you to get in the back of the line. However, when they see Nick's mask and seem to recognize him, they all quiet down. "How could you let her-" you say, about to yell at Nick, when you get closer to the bed and see that while the woman resembles Olivia in body shape and hair, it's not her.

"This is Chloe, 1 of my household staff," Nick says, just as the man fucking the blonde pulls out and walks away. Curiously, it doesn't seem like he came. The next guy then steps up to Chloe and slams his already hard cock into her pussy from behind, while 1 of the guys who was getting orally pleasured steps away as well. He also did not seem to have cum.

"Do you need something, sir?" Chloe asks eagerly when she doesn't have a cock in her mouth, even though she is getting fucked pretty hard.

"No, no. My guest here just thought you looked like Olivia," Nick says.

"Oh! Thank you!" Chloe says to you with a smile, like you had just paid her a compliment. After that, she turns to another cock by her head and proceeds to suck on it.

"So where is Olivia?" you ask, turning to Nick as you 2 walk away from the gangbang.

"She should be helping my sister get ready," he says.

"Get ready for what?" you ask.

Nick motions around. "What do you think this is?"

"A sex party?"

"It's a reception."

"A reception... for what?"

"For my sister's wedding. She's getting married later," Nick says, like it's the most normal thing in the world.

"Oh" is all you manage to say in response. You don't know what else to say.