Poor Didi... I almost think some people do things like this, making perverted comments and such, not just because they hope what they say will come true, but also just to be mean. These guys probably don't expect a girl will lift up her skirt because they ask, but they don't care about how their words make her feel. Or maybe they do know, and just want to ruin her day.
On a different note, I love how you colored this; the first few panels really look like they are outside, in the sun. That is a hard thing to pull off, but you did it! A fantastic picture that is also worth a thousand words.