What makes my panties have such stains after each

well im at work i get so extra horny from all the dirty things that i think about and run through my head as i help my customers.i work selling shoes to all ages men and women. which when im working i spend half my time kneeling down with my face at crotch level to see the buge in there pants after hitting on me and checking my body out while i talk to them and flirt back trying to help them find the right shoe. when we find their shoes they want to try on i sometimes will even let them see up my short skirt seeing my wet spot on my panties or if they get me on there lucky day i will even be wearing no panties under my skirt and they get a nice view of my super wet pussy as i lace up their shoes for them.so when i think about them getting hard due to me and wondering what they are thinking about me and if they are going to head to the bathroom right afterwards to jackoff to make themself cum from what they seen and thinking i didnt know what i was showing too them the whole time.thats what makes my pussy all wet,so every time i go into the backroom to get shoes i rub my clit for like ten sec.so think about how many times i must have to get pairs of shoes for people in a day and how many times i rub my clit throughout my day at work!!