Forget free lunch. Some workers just want an office bidet.

Getty Images; Alyssa Powell/BI

Seungmin Hong felt he had two options: Stay at Tesla or have a clean tush.

After finishing an engineering internship at the automotive giant last year, the University of Waterloo student was weighing whether to stick around or accept a job offer from much smaller Simbe Robotics.

During Hong's final interview at Simbe's San Francisco office, he asked to use the restroom, and there it was: a glistening, inviting bidet.

"That cemented in my mind: 'Yeah, this company actually cares about their employees,'" said Hong, who grew up with a bidet in the bathroom of his childhood home. He took the job.

Move over espresso machines, ping-pong tables, and nap pods . For workers like Hong, the humble bidet is the ultimate job perk.

In recent years, the hygiene-friendly fixtures have gone from novelty to must-have for many US households.…