Nicki walks in to the bathroom and is closing the door when Bill walks in.
"Hello," Nicki says. "What are you doing here?"
"Oh, I thought I'd visit." Bill leans over and kisses her.
Nicki doesn't respond at first. She hears Katy's voice in Todd's room. "Oh hell," she thinks to herself, "why not? He's pretty cute, I'm feeling pretty good." She kisses Bill back.
They kiss passionately for a while. Bill picks her up by her butt and put her on the sink. He kisses her neck and breasts, and starts to unbutton her shirt.
Nicki hesitates. "Should I do this? It feels really good, he's doing a damn good job." She hears Katy and Todd talking next door, and then helps Bill take off her shirt.
He pulls off his pants and takes off hers with a strong yank. She moans loudly as he enters her. Bill thrusts for a while as she moans louder and louder in the direction of Todd's room. Her voice reaches a screaming level, and Bill looks at her with wide eyes.
He finishes and pulls out. She puts on her clothing, keeping her eyes firmly trained on the ground. Not a word is exchanged.
"I wonder if I'm gonna regret this in the morning when I sober up," she thinks to herself. "I can't believe I just did this."
Without saying a word they both walk out of the bathroom in to the party.