Anna responded and said more or less no and why would she believe I had a ticket, well she said it to John623N. I scanned my ticket and attached the f...le to my reply, after I removed the ticket serial number with photo shop pro. Anna replied we could have a date but no sex.Negotiating with your sister for sex was fun and made me laugh. She gave in a little and offered to pose nude, hell I nearly took that, upped her offer to include kissing and fondling her tit's and I counter offered I wanted. She tore her eyes away despite her own hyper awareness of a growing gnawing hunger in her body that she’d started with her own fingers.Instead, she gathered her anger to prepare a crimson blast, ‘Crap, no, I can’t do that here!’ Stalled into inaction, the class continued to descend into orgy as one girl sunk herself onto a vertical cock with a satisfied, “Yes!”Crimson let out a frustrated growl and flew down grabbing the gropers one by one and pulling them off of and sometimes out of oversexed. I let out a low, deep moan. He worked a finger or two over and into my ass to prepare it for his cock which was still rock solid and pulsing. I could feel him move forward onto the bed, one hand pushing down on the small of my back, the other guiding his thick mushroom head into the crack of my ass. He worked it up and down between my cheeks before piercing the head down into my hole. At first I thought he was going to work it in nice and slow, letting my hole stretch around the shaft, but when. The pain becoming intensely real. Tears are now falling, as I feel warm, cold, pleasure and pain, all mixing together. Without seeing what is happening, the sensations are also mixing, rushing together like hot & cold water colliding in a tub. I can't tell where the pain ends, and the pleasure begins. Again you ask: "Do you want what is next?" I answer: "Yes, please." Suddenly, a surge of pain... no, pleasure... well, actually, again I can't tell which is which. There is a sting, a slow pain.