We are both so horny for each other, but you don't want to cheat on your servant girlfriend, so I suggest you just rub your cock against my pussy. So you start rubbing your cock against my panties and they get wet from my increasingly wet pussy. I pull my thong aside and show you my pussy. You put your stiff penis under my panties and keep rubbing yourself against me. I push my panties aside so that you rub bare against my pussy. That makes you so horny, but you really don't want to cheat on her, so you rub yourself against my thong and squirt your whole load onto my thong, which separates your cock and my pussy. Fuck that was awesome!