The first thing I want you to do is head to the toilets or somewhere private. Strip off everything except your panties. Now I want you to edge, but your panties must stay covering you, get them nice and wet.
Let yourself cool off for a minute.
Now edge again.
Are those panties all soaked through? Good. Take them off and stuff inside yourself. Leave a tiny bit hanging out. Then put back on the rest of your clothes, and head into the shopping area.