This isn’t an image taken from some porn site, it is a true amateur submission. A female who has been going about her daily routine wearing her panties and by the look of things, she has been thinking a few horny thoughts. Just look at the small wet spot, it is so perfect and natural, not faked, a genuine patch of creamy wetness as her horny thoughts are captured in her lingerie.
When someone says wet panties I usually assume they mean wet from urine or wet from sex, be it the female leaking her juices into them or the remains from a lovers deposit. These kind of wet panties are what I prefer to see, wet from natural water drenching the material so that they both hug the curvy ass while becoming see through.