I (32M) was going to meetup with some friends with my girlfriend (28F). She sat down on a bench at the bus stop and did not realise it was wet and got her skirt wet, she thought it was piss but I don't think it was as it was brown not yellow. I suggested we just go and it would dry off anyway but she didn't want to as she had convinced herself it was piss.
She asked me to go to a nearby store to buy her a pair of knickers and a new skirt but I did not want to as I did not want to be seen like a creep buying women's clothing. I offered to her her some unisex pants instead but she insisted and said she really wanted a skirt.
She then went and got her skirt and we took the next bus and I thought that was the end of it.
But then when we got back home, she got upset with me and said I should have bought it for her, or at least come in the store with her as it was embarrassing to go in like that. But it was embarrassing for me too and I shop at that store and did not want to become known as the creep who buys women's clothing. I had offered to buy her pants but she declined.