Give him a blowjob

You turn to him and take off his pants to release his hard cock, you are caught by surprise by its size: 7 inches long and more importantly very thick. You start by slowly licking the tip of his cock, while your hand caresses his balls, then inch by inch you push more of his cock between your petite lips. You are not even half way through and it already hits the back of your palate.

The taste of cock has gotten you extremely aroused, so with one hand you start teasing your clit, initially you try to go slow, but soon you give in to your lust and start fingering yourself. At this point you forgot you are in public and begin moaning, luckily you can't make a lot of noise since your mouth is full of cock.

You notice that even your gag reflex is gone and you quickly put your newfound ability to use: you put the whole dick into your mouth and start bobbing your head up and down. You are completely in apnea at this point, but you keep going, at one point you even manage to get part of his balls into your mouth. You feel him tensing up and preparing to cum.

You switch to sucking the tip of his cock and stroking it with your free hand, while the other one keeps pounding your pussy. He tries to hold off the orgasm a little more, but you aren't slowing down, he cums into your mouth, a first spray, then a second one and a third. You free his cock from your mouth, but after a couple of seconds he cums again staining your clothes that were left on the floor.

Only now he notices that all the while you were fingering yourself "Want me to help you with that?" he says while pinching your clit, this is enough to bring you to the second orgasm of the day, this time you didn't squirt though and you were left with a dash of dissatisfaction.

Still it takes you a couple of minutes to regain your composure, meanwhile the clerk brings you a red dress with a really short skirt and a deep cleavage almost down to the belly button "Courtesy of the shop, because of you stained clothes". You thank him and you put on the dress, without a bra, because the cleavage is too revealing to wear one. You exit the changing room and you are about to leave the shop, when he whispers "I'm gonna need the panties back though, as you didn't pay them", you glance quickly around and see only a couple of girls facing in the opposite direction, so you swiftly take off you panties and hand them back.