My wife did it once under her scrubs in a medical office. She lost a bet and had to go commando one day. No bra and no panties.
I go commando quite often because it's healthier and we for the most part don't have to worry about unfortunate bulges. No reason not to most days
She worked for an oral surgeon who had a "penthouse" above the office where he took willing staff members. My wife was not willing. The surgeon's office staff went to happy hour and she was fingered by the 60 year old accountant. her doctor/boss propositioned her, but she refused. Pharma sales reps frequently propositioned her, and she met a few at out of town medical conventions for sex. Finally her last sex adventure outside marriage: a 65 year old doctor from another country asked her to be his escort to a big event and had sex with her in his penthouse for hours.