A sly smirk appears on my lips as you lean back. I thrust up again, harder this time, the new angle allowing my cock to hit your g-spot directly. Thru...ting faster now, I continue hitting your g-spot with the throbbing head of my cock. As you moan, I plunge one slick finger into your tight little asshole.You inhale sharply, yelping slightly at the unexpected penetration.My other hand grabs your loose brown shirt and yanks it out of my way. Grabbing your ass again, I slowly work my finger in and. As we walk up the hill past the boys' cabins, Madi drops her bags in the middle of the dirt and stands there. I turn around and say, “Madi, come on now, we need to get you in your cabin and settled. Let’s go, little lady.”She runs to me as fast as she can, hops onto my chest and begins to kiss me on the lips. Thankfully, nobody is around to see this or I would be doomed to be fired. I step back a few feet, kneel to her level and say, “Listen, Madi, I want you so badly but I will lose my job and. She’s my sister!”I stormed across the plaza and grabbed the guy squeezing Annie’s boob. I lifted him off of his feet and dropped him flat on his back on the concrete flagstones.His moans of pain made his friends turn away from my sister to see what was going on.“Whoah FUCK!” Exclaimed one of the heroes. “Look dude, you can have her!”The other guys just took off running and tried to melt into the crowd. That just left a pissed off Annie and the guy still writhing in the ground in pain.He tried. When my pants were removed and I was in his car with nothing but my underwear on. I bent over to continue to suck his cock when he said I now had to take underwear off. He told me he wanted me to be totally naked. He said I was almost there anyway and if I wanted to continue to suck his cock I would have to be naked to do it. His cock was great and I loved sucking it so I got naked for him.From that point on every time we would meet the first thing I was required to do was to strip naked. .