“Know in your belly, girl, that you will get your heart’s desire and be a man’s sex slave by the end of today. A natural slave girl like you doe...sn’t do well without a Master. So, you will be totally and completely owned and thoroughly used in whatever ways please your owner,” I said.“If he hurts you enough to do physical damage, my only option would be to kill him to free you from his collar. If I did that, I’d have to make you my slave fully to protect you from yourself.”Wendy took my right. "Oooooo," she moaned, her hand feeling the massive lance through the thong, "it's so big, Mark. I don't know if I can take it."This was only a slight exaggeration. While Mark was not as large as Alexandra (who was?) he was considerably more well endowed than Manny and his erection was already full and throbbing."Let's get you naked," he said, causing Manny's arousal to heighten even more.The thong was slipped down and Catherine Roberts stood naked in the firelight. She slithered to her knees. She was as pent up as I was and it only took a couple of minutes to get her to a mind blowing orgasim. She continued to ride me for another several minutes till I filled her with my cum. She rolled over and layed beside me on the bed. I sat up and looked at my sister's gapping cunt, my sperm leaking from it. Then I looked over at the other woman with my cum leaking from her. I wanted to know who this drunk woman was. My sister and I are on vacation with my parents so we have not had time to. Facing reality, I bid her goodnight, wishing I could at least have a kiss. She closed her door and I figured it was the last I’d see of her. I busied myself with getting ready for bed, trying to get her off of my mind, but the knowledge that she was just a few steps away taunted me. I took a shower, hoping to clear my head, but it didn’t help. I had to have her, but knew it was not possible. It was torture. Then I knocked over my suitcase, which fell against the wall with a loud THUD. ‘Sheesh’.