As soon as Katya stepped into the sauna, the heat hit her like a welcome embrace. She had been looking forward to this all week – a relaxing evening at the spa, alone. But as she took in her surroundings, she realized she was not, in fact, alone. At the back of the sauna she saw two figures intertwined on the bench, both of them a blur of naked flesh.

"What the fuck?" she muttered under her breath.

"Hey, welcome to the party," The man – a tall, muscular figure with cropped blonde hair – looked over at her with a smirk, while the woman – a busty, petite brunette – continued to ride him with a feverish intensity.

Katya hesitated for a moment, unsure of what to do, before stepping back out of the sauna. But as soon as she felt the cool air on her skin, she felt a twinge of jealousy – she had never been so bold. She couldn't stop herself from stepping back inside, her eyes darting between the two bodies as they writhed together.

"Fuck it," she muttered, striding forward, feeling a sudden brave rush. "Can I join?"