Been there too. Sitting at work, underdressed in pantyhose and I didn’t realize my dress slacks (lined and feel oh so heavenly with pantyhose on rubbing against them, highly recommended) had ridden up on my leg and my sock had ridden down. It was spotted by an observant female coworker and she asked inquisitively what I was wearing.
I kind of laughed it off and said I had to use hose as support for my legs. She seemed to have bought it but in hindsight I wish I had been able to be more forthcoming as I may have possibly made a girlfriend then and there. We were both only in our 20’s then and both single and she always wore killer 3 and 4 inch heel pumps to work with gorgeous dresses and tight skirts. Ahhh, hindsight;-)