Standard disclaimer. You must be 18 or over to read this story. All the names have been changed to protect the lusted over. This is a continuation of the first part. It's also a fantasy. Enjoy!
As Kathy began to slide her pussy over my cock, I reached up and began to massage her tits again. A soft moan escaped her lips as I started to lift my hips off the bed, driving my cock a little deeper into her. Her pussy still clasped my cock in a very pleasurable way. I thought about baseball, basketball, football; anything to keep from coming. I looked up at her and she had the most serene look on her face.
"Oh Dan, that feels so good," she moaned as I started to pick up the pace a little.
"Kathy, you feel so tight. You're gonna make me come again."
"No! Not yet," she pleaded. "I want to come some more."
With that, she bore down on my cock and just sat there. I could feel her vaginal muscles massage my cock. I lifted my head and took a nipple in my mouth. My fingers lightly stroked her back. She came again, forcefully. Her cunt clamped down on my cock and I started to come.
"Oh Kathy, baby, I'm coming. Your pussy feels so good. Can you feel me coming, baby?"
My gorgeous sis-in-law threw her head back and screamed low, guttural and loud.
"Oh God, Danny, oh my GOD!"
Her pussy clamped down on my cock in waves. My cock began to pulsate, ready to deliver my come.
"I can feel it! Oh, my dear, sweet brother-in-law. I can feel your penis throbbing. It feels so damn good!"
She came again. I followed her very quickly, my cock shooting out a condom-filling load. Her head thrashed back and forth and she struggled for breath, as her orgasm overcame her. She collapsed, sobbing onto my chest. I held her, gently stroking her hair until she came back to her senses.
"Shh, it's okay Kathy. You okay?"
She mumbled a soft yes and rolled off of me. My cock was covered with her juices. I left her in bed and went to the bathroom to cleanup. When I returned, I took her in my arms and we drifted off to sleep. Sometime later, my wife came into the bedroom.
"Everything go okay?"
I sleepily murmured, "Yes, catch you later hon" and drifted off to sleep.
About an hour later, I woke up. Kathy was still sleeping next to me so I got out of bed and looked for my wife. She was downstairs watching TV.
"Hey Sleepyhead"
"Hey baby, how're things in the real world?"
"Eh, same old shit, every damn day. Nothing really on TV. I spent most of my time masturbating, listening to you take my sister's virginity. Sounds like she had a great time."
"Yeah, it appears that way," I smiled back. I sat down next to my wife and gave her a kiss. "Thanks for being so generous and supportive. I think your sister really needed that."
My wife reached over and grabbed my cock. "She didn't wear Mr. Happy out, did she?" My cock began to expand in her hand.
"Doesn't look like it now, does it?"