I had called and let them know and while they said that they were okay with it I still felt a bit of familial guilt after all I am their big sister. I...promised I would make it up to them and pour myself into studying."You're only an hour away Nat, you could go and be back in time to cram a bit before bed." That was my roommate Gina. She and I hadn't known each other when I moved in but we had become best friends over the course of the last two years of college. "Besides," she continued, "it's. "Oh well. Not the worst thing she's called us. But we should get going tothe park and scope it out." Devin said as the group filtered out of theroom.The other guys agreed and started heading towards the exit of the suite.Mason alerted Addison on what they were up to and she followed him asthey left the suite. If it weren't for the fact that there were signsposted on where to go to get to the actual park, the group would havegotten immediately lost. But they managed to find their way to. Handing Shelly the remote I took more photos. My cock was throbbing and pointing up at 45 degrees. "What's this" Shelly asked holding up a short steel ornate chain with studs on either end.I grabbed one of Lynda's pierced nipples as she swung my way her body weight stretching her boob as she moved away."OOOOOWWWWW! Fuck that hurt" I have heard enough from you" Shelly found Lynda's wet panties and stuffed them in her mouth.We played till midnight. I used 6 rolls of film. Shelly and I ended up. Cradling his balls with my hand, I bobbed my head, taking his entire cock into my mouth and throat.My sister moved her head closer, licking Mark’s shaft when I lifted my head. She pulled me away, pressed her mouth to mine, and kissed me. I felt her tongue part my lips and slide into my mouth. While Jill kissed me, she jacked Mark’s cock.“I didn’t know,” Jill said.Shrugging my shoulders, I said, “Neither did I. Not until we came up here to the fishing camp. I fooled around with my friend.