Free My Wife's Little Sister by Cassandra Zara

you can't suck my dick, I'm trying to tell you why we can never do these things again."
    She pouted. "I really wanted to play with you tonight. Where are you staying tonight?"
    "Where am I staying? At my home of course," I said.
    "I don't think you'll want to go home after I call Lynn," she said.
    My heart sank in my chest once again. My wife was the most important person in the world to me. "You promise you'll listen while you're sucking my dick?" The question was absurd, but I had to ask it.
    She smiled and nodded her head, then moved her hands to my pants. She unzipped the zipper of my pants, then pulled them down. She pulled my socks and shoes off before pulling my pants off. As she worked, her top slid around on top of her tits, giving me a quick view of her nipples as she moved.
    She got on her knees in front of me, then slowly pulled my boxers down. My cock sprang out as it was freed. She licked her lips as she moved my boxers the rest of the way off my legs, then positioned herself between my legs. Immediately, her lips wrapped around my cock, and she looked into my eyes as she moved her head up and down, pleasuring me with her mouth.
    "Now, will you listen to me?" I asked.
    "Mmm hmm," she moaned around my cock.
    It was a lot harder to concentrate now that she was doing what she was doing, but I started anyway. "I know that you like me, but this has to stop. I love your sister, and I don't want to hurt her."
    Kelsey maintained eye contact while she sucked. I didn't know if she was still listening but I continued. "I've been on pins and needles ever since the first time we had sex. If Lynn finds out, my life is over. I've been distracted, my work has suffered, my relationship has suffered..."
    Kelsey stopped sucking for a moment. "You're afraid that I'll tell Lynn." It was a statement.
    "Yes! It would destroy my life!" I practically cried out.
    She smiled, a wry smile. "Then don't be afraid. As long as you keep having sex with me, then you have nothing to worry about." She immediately went back to sucking my dick.
    "Kelsey!" I cried out. The feelings on my cock were amazing, but she was really frustrating me. "You don't understand. What's the end game here? Am I just supposed to have sex with you forever?"
    "Mmm hmm," she moaned again. It felt so good but she was being so frustrating.
    "Kelsey, you need to stop. I can't cheat on my wife again," I said.
    "Yes you can," she said, then immediately kept sucking.
    She was the brattiest little sister anyone could ever have. "For the last time, Kelsey, stop."
    "Mmm mmm," was the negative answer from her.
    I had had it. I grabbed her hair, pulling her off me. She gasped and smiled immediately. "Is this what you want? Do you want me to force you to stop?"
    "Yes," she moaned immediately. "Force me to do things."
    I groaned in frustration just as I felt the familiar snap within me, knowing that she had pushed me over the edge. She was just too fucking sexy to resist. I forced her face down to the bed, lifting up her skirt. Underneath was a pair of delicate, lacy, white panties. I let go of her hair and rubbed my hands up and down her legs. She kept her face down as I put my fingers inside the fabric. It took hardly any effort at all for my fingers to go right through, and with a sudden pull, her underwear was in tatters. I pulled until a remnant of her underwear was on each leg.
    Immediately, I spanked her ass hard. She cried out, louder than I'm sure she wanted to considering how thin the walls were in these dorm rooms. I didn't care. I spanked again. "Yes!" she screamed. I spanked her again and again, and she made no move to stop me. In fact, I started to feel her vibrate. No, not her...
    I looked past her ass. She had gotten out a blue machine while I wasn't looking. I recognized the head of a penis on the end, and a small nub on the side of it was vibrating on her clit. Her eyes were already rolled up into her head, and she was beginning to spasm and shake.
    "Oh no you don't,"