Kizuna and I didn't have sex again during the next two weeks. I knew she was willing, but I was afraid she hadn't recovered enough. Besides, I was sti...l terrified of getting caught. After all, being found with my dick inside my sister would be awfully hard to explain.Finally, the night after my last college exam, as I lay in bed beside Kizuna and hoped I hadn't royally screwed up, she turned to me and asked, "Oniichan, can we do it again?"I knew what she wanted. I also knew that she was. It had happened so fast. First Jace and Melinda, then Phil and herself, then all of them in a weekend of non-stop sex, occasionally broken by a run down the slopes. Even when skiing, the foursome had managed to find a secluded spot and managed a quickie or two in the snow.She smiled, remembering every moment of the weekend. There had been more than sex between them, she realized. Love too was there--even before they learned to share their bodies. Their lovemaking only seemed to draw them that. "Cam..." I said softly, "Let me suck you off, okay?"I could feel his hard cock at the entrance to my vagina. A small part of me wanted him to push it in.He did. "Oh!" I gasped, not expecting him to actually do it. He didn't want a blowjob. Oh no!Due to his saliva and the lubrication produced by my orgasm, Dad's cock slipped into me easily. Within a few thrusts his cock was buried all the way inside me again. He resumed kissing me as he thrust into me again and again. His hands moved to my. He then decided he wanted her naked and let her clothes fall to the floor. He began sucking on her tits as he shoved three fingers in her cunt knowing several were watching his sexy woman. Then he moved the fingers from her cunt to her ass and finger fucked her ass as he sat her on his long hard cock and began fucking her as hard and deep as he could. He grabbed a nipple with his teeth and pulled on it as he fucked her with brute strength. He filled her cunt with cum and kept his cock deep in.