It was a warm day. I had no business to do and was just sitting in a park enjoying the birds' chirping. Soon, a couple of roller skaters appeared. Guy was doing great but his girlfriend sucked. I watched them and it warmed up my interest that a girl had a really nice butt and each movement of hers made my dick twitch. Girl asked for a drink but the guy didn't have any money at all, even to buy her water. I couldn't miss my chance, so I offered to buy them water and to start a conversation... «Hey kid, having financial troubles, eh? I could help you out... Your girlfriend is so curvy you know what I mean? », I asked him. But it turned out that I wasn’t talking to the proper guy, the girl was the alpha in their couple, and it didn’t take much long to persuade her... after half an hour she eagerly sucked my dick and her pathetic boy meekly licked her feet. I couldn’t believe my eyes...