Title: "Cheating on My Sister: A Dangerous Affair

Taking a trip with my married sister 2
I couldn't believe my sister would cheat like that on her husband even if the guy was hung so she said. But hell I was fucked by two guys so maybe we are sluts.
As I stood there watch Gary's bare huge cock sliding in and out of my sister, I found I couldn't look away as Gary said " Maybe you should lick your sister clean." He said that just before he pushed in, oh fucking hard pumping his cum deep inside my cheating sister's pussy, and without a condom either, not that the guys used any with me. My sister looked up at me saying " Sorry sis, but it may take half the night before he can get hard again."
I turned as to leave, but if I was going to get cleaned up, how could I do that other then in our room? Gary pulled out, as my sister just rolled on her side with her knees pulled up and her raw looking pussy with a flow of their cum leaking out. Gary was sitting on the bed near her ass with his mostly soft cock which still had to be 6 inches long and fat as hell, shining in the light with their wetness slowly drying on him.
I snapped out of my fog, as I went to go by Gary to get some clean panties, he grabbed my hand pulling me off my feet and onto the bed with them. I yelled for him to let go of me, but he said " Oh come on, lick your sister clean. I bet sister would love if you were to eat her out." I said "Gary your fucking sick," as my sister moved over next to him, saying something in his ear.
He laughed, as he spun me around putting me face first between my sister's now wide open legs, with her leaking pussy only a few inches from my face. As I looked up, my sister who was smiling said " Holy fuck sis, you sure had a lot of cum in you didn't you?" Gary said " You two are the hottest girls ever." as I pushed my tongue into his slit, before taking the head in my mouth filling my mouth as my hands started working his shaft.
I guess it was just after I had come for the 3rd time, they switched places with Gary and were fucking me slowly, as I opened to his size. God knows I sure in the hell didn't need any lube after being with his two friends and having my sister make me cum as well. I have no idea how much of his cock was in me, as he began fucking me harder and a lot deeper with my next orgasm building fast, as my orgasm let loose inside of me, as I had to lift my sister off my face to scream my orgasm out.
Gary fucked me to 2 more total body orgasms, before my sister wanted her turn. I was more than happy to let Gary have her again, as I was starting to feel so fucking raw down there I wasn't sure I could even walk. I got on my hands and knees climbing on my bed falling a sleep with the sounds of my sister having her own orgasm.
I woke up in the morning so sore I could hardly move, and the room smelling like a some old whorehouse. I was able to open the balcony door letting the cabin air out. My sister was also still naked but not as naked as before, so maybe we should have sex more soon? Gary started fucking me again once I was awake from my sleep.
I dried off as I went back into the cabin Gary was just getting off the bed semi hard, as I thought ' how the fuck did that fit in me,' as Gary said " Morning." Heading to the bathroom. I dried my hair brushing it like I do every night, just not last night a 100 times strokes. I had to wash out my bikini, but I did bring two so I could suntan later after getting something to eat. I looked at my sister who was smiling as she said " Holy fuck sis, you sure had a lot of cum in you didn't you?" Gary said " You two are the hottest girls ever." and as I pushed my tongue into his slit, before taking the head in my mouth filling my mouth as my hands started working his shaft.

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