My girlfriend was offended that I took a dirty photo of her in front of everyone ⇐ General

[Guest]

In general, this story happened, we were walking in the park with a group of people, we met them on VK for walks in the park with a drink.
We were drinking port wine 777 normally, so I got drunk and I had the idea to lift up my girlfriend’s skirt and take a picture of her ass)
but I didn’t expect that she was without panties... in general, everyone saw it, of course their lecture was stormy, but mine, apparently, was already completely drunk from alcohol and didn’t have time to close up, now she’s fiercely offended and doesn’t even communicate with me (what should I do?
Actually, we’ve been together for 2 months; she’s 17 years old, I’m 18, and we don’t have sex at all, she’s a virgin and says that she won’t give it to anyone before the wedding, maybe someone knows how to persuade her to have sex? I really want to.
Attached is a photo of what I managed to take
https://i.postimg.cc/ RVbnxC6z/k-DIg-VVl1-Qu-E.jpg