It happened a couple of weeks after I discovered that our new babysitter was none other than the girl I'd been flirting and fantasizing with online. After that night I had told Kat that we could not have a physical relationship, that I couldn't betray my wife that way. I explained that if it meant the end of our online flirting as well I'd understand. Luckily for me she had sad that she completely understood and that she didn't want to stop our fantasizing. I should have realized then just what that little twinkle in her eye had meant.
The weeks following showed me just how hard it would be to keep to my decision. I hadn't been so sexually frustrated since I was a hormone addled teenager. Every time Kat came over to babysit I left the house with my wife on my arm and a raging hard-on threatening to tear through my pants.
Kat seemed to go out of her way to tease me, wearing clothes that she knew would get my motor running. They weren't always overly revealing but she knew all of my fantasies and fetishes. Sometimes she would just put her long hair up in pigtails or braids that I ached to pull on and whenever she caught my eye she'd pull on one, idly scratch her breast through her tight shirts, or softly caress her stomach where I knew her panther tattoo was crouching. She knew exactly how obsessed I was with her and she loved driving me crazy. I always saw her checking for the results of her teasing as I left the house.
My wife wasn't any help either. Not only did it seem like she was wanting to go out much more often than usual, requiring us to ask Kat to come watch the kids, but she started commenting on how sexy Kat looked in that skirt, or wondered aloud who might be getting to enjoy that tight little body on nights when she wasn't sitting for us. She wasn't stupid, she could tell that Kat turned me on. She would get me so fucking hard thinking about Kat and then I'd take her, pounding her to one screaming orgasm after another. A couple times she even taunted me while I was fucking her. "You like fucking that little pussy, Mr. Stone?" she'd ask, imitating Kat's voice.
I knew that my wife didn't know what had happened between Kat and me, and I was pretty sure she'd be furious if she found out, but I swear sometimes I saw the same lust in her eyes that filled mine when I saw our sexy little babysitter. My wife had never had an experience with another woman, and I was the only man she'd ever been with. But those looks always got me imagining Kat on her hands and knees, licking my wife's dripping pussy while I rammed her from behind.
I felt guilty for my obsession, for my fantasies, for my lustful glances as Kat would bend over in her tight jeans, but I couldn't help it. Kat was mine! and I wanted to claim her over and over and over again.
It was a Friday night when it happened and my wife and I had planned our weekly dinner date. Kat was already there when I got home, but for some reason my wife hadn't changed her clothes. "Everything ok?" I asked her, tearing my eyes away from the flannel shirt Kat had worn for me. There was no doubt she'd done it to tease me. Plaid flannel shirts with plenty of cleavage showing are among my biggest turn-ons.
"I just don't really feel like going out," my wife answered. She looked pretty tired, the way she normally looked when the kids had been particularly out of control during the day. "Can we just stay home and watch a movie?"
The kids went wild at this, jumping up and down and screaming out names of movies they wanted to watch. I smiled and responded, "Sure sweetie, I'll just run Kat home real quick and then we can start it."
"Can Kat stay and watch the movie Mommy?" The question came from my daughter who was looking up at my wife with her best pleading little kid look. My wife glanced at me before looking down at my daughter.
"Sure princess, if she wants to stay she can," she said with a smile. She watched the kids jumping around in excitement, but my eyes were on Kat who had been listening. When she saw me looking she gave me a wicked little grin and subtly undid another button on her shirt, her breasts pushing the thin flannel fabric farther apart. Once I was able to tear my eyes away from the mounds of flesh staring me in the face I looked over the rest of her outfit. Tight jeans and two braided pigtails. She looked ready for the rodeo and of course all I could think about was her taking a ride on my throbbing member.
I groaned internally as my cock immediately swelled to full erection. I walked over to the smaller of the two couches and sat, pulling one of the throw pillows into my lap to hide the bulge that was visibly extending down my right leg. After confirming that Kat was staying and deliberating as the kids decided on a movie, my wife came over to sit next to me. She pulled her legs under her and snuggled into my side, watching Kat as she helped the kids put the movie in and get it started.