Cindy eased the dildo into Liz’s pussy. I could feel the toy against the underside of my cock through the thin tissues between her vagina and her rectum.
The poor girl was sweating profusely, struggling to adjust to these new sensations. Neither Cindy nor I moved.
After a moment, Liz said, “You guys are killing me. My God, I’ve never felt so stuffed. But I’m okay now, I think. Doc, start fucking me. Go slow until I’m used to it. Cindy, just hold the toy in there for a minute.”
I pulled back slowly, so that only the head of my cock was still in her ass, and then advanced again, burying my full length inside her. After a dozen or so strokes, I could feel some of the tension leave her body.
“Okay Cindy, please start fucking me with your toy.”
Cindy moved at the same pace I did, advancing when I retreated, and pulling out when I pushed. She was hugging Liz, caressing her hair and kissing her gently.
Liz was breathing deeper now, seeming both more relaxed and more turned on. She said, “I think I like this. It hurts a little, but it’s so damn good!”
Cindy was the first girl I had ever had anal sex with. We had both been apprehensive at first, but found that we both enjoyed it. Even though Cindy’s pussy is nice and tight, and fits me like a glove, her ass is even tighter. Sooner or later, every woman we brought to our bed tried it, too. Most came to enjoy it.
Liz was no exception. She began to move against me, thrusting me deeper and harder inside her. Cindy kept stroking the dildo in and out of Liz’s swampy pussy, and soon I was pounding myself into her bowel.
“Cindy, my clit! Rub my clit! I’m gonna cum, I gonna cum, OH GOD!” Liz screamed. She began shaking violently, and reached back to me, digging her fingernails into my buttocks in an attempt to force me deeper into her. It was too much for me, and I pumped my semen into her ass.
When we were finished, Liz collapsed against Cindy. I knew I was done for the night, and from the looks of her, I could tell Liz was too. We cleaned ourselves up, got dried off, and went to our king size bed for some much-needed rest.
I was awakened the next morning by Cindy’s voice. “Oh, yes, Liz, right there, right there!” she said. My wife was on her back, her legs spread, and my student was busily eating her. When I sat up to get a better look, Liz paused for a second to say, “Fuck me, Doc. Not my ass. I’m still a little sore, but my pussy really needs you.”
* * * * * * * * * *
After Liz had left, my wife and I sat at the kitchen table and talked.
“You found a live one this time,” Cindy said with a smile.
“I thought you’d like her,” I replied.
“I do,” Cindy said. “Let’s have her come over again next weekend.
* * * * * * * * * *
Liz became a pretty regular guest at our house. She loved sex, every bit as much as Cindy and I do. We always had a great time, and Liz came to love fucking Cindy as much as she did fucking me. She even brought a friend over one time to introduce her to the pleasures of being with a woman. That night damn near killed me.