(Though my stories are standalone, they're all somewhat related. For a complete list of chronology, refer to my profile info.)
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Ever since that night I broke my wife Bonnie's baby sister Kaitlyn into our depraved sexual lifestyle, Bonnie had been careful about my contact with her. I mean, even though her sister and I never furthered our contact, they continued their relationship like before. I don't know whether it was simply protectiveness of her baby sister or she was jealous and even afraid I would actually cheat on her. Much like most of you, of course I had hoped for another 3 way romp with her tender juicy younger half. However, after a while I realized that was never going to happen again.
So you can imagine why my wife was a little worried when Kaitlyn came to visit us one weekend in the city and she was too busy at work to greet her. Knowing I would be alone with her, Bonnie insisted I take her baby sister out around town in public rather than hanging out in our cozy love nest. I don't blame her though, since our apartment was where I made a fuck sandwich out of them the last time Kaitlyn visited. I would never cheat on Bonnie obviously, but I respected her wish and didn't want her to worry one bit.
That night, I took Kaitlyn window shopping and sightseeing under the lights of our sincity. It was a chilly autumn and much like before, she dressed like a teenager with ripped jeans and a denim jacket. She even wore a beanie and had a light scarf around her neck. I hated the city during the weekends because it was loud and crowded everywhere. Not surprisingly, Kaitlyn loved every minute of it as she was living at home with her parents in the suburbs. After we were tired from all the walking around, Kaitlyn blurted right out she wanted a drink. Like the last time I saw her, the little Asian princess was still expressing that childish entitled spoiled attitude. Taking her to a bar or club would've probably freaked out my wife, so instead I settled for a local Irish tavern.
We had a little chat as the alcohol warmed her up to me. No, we didn't talk about that raunchy night from her last visit. However, I was just glad she was not awkward around me. Since she was much shorter and smaller than my wife, it was not surprising that she was an even lighter drinker. With only a few pints of beer, she was tipsy and extremely flirty like a young college slut. She would rub my thigh as she joked, bit her lips while she stared at me. At one point I was actually wondering if Bonnie set me up. Perhaps my wife wanted to test me? Or perhaps she simply wanted to tease me and make my cock ache?
Soon I could not hide the bulge forming in my pants from all my sister-in-law's sexual advances that I decided the night was done. No, not what you are thinking. I would not cheat on my wife. I honestly was done with the evening and was going to take her home. I figured that if Bonnie indeed was setting me up, she would tease me some more all evening until I ultimately end up punishing her cunt with my savage cock when we were alone. Yes, of course I had also thought and hoped maybe she wanted another kinky night of fuckfest with her baby sister.
We took the subway home and it was more crowded than usual. I was standing in the corner near the subway door facing the window with Kaitlyn in front of me and her back against my chest. Though she had both her hands up holding the handles, she was tipsy and the rocking of the train was making her wobble on her feet. To keep her steady, I had to wrap my arm around her waist while only holding on to one handle with my other hand. Whether intentional or it was just all the rocking, her hips kept rubbing against my throbbing bulge and it was driving me nuts. The tease was just way too much and honestly, I didn't even notice when my hand involuntarily moved up from her waist and started groping her soft breasts. With each squeeze, she let out a sultry gasp and pushed back harder against my aching bulge. It was the most uncomfortable moment of my life, being teased on a public train packed with passengers.
Nobody noticed us at all with all the noise and the subway bumping and rocking. I was lost in this sexual trance for a while before finally snapping out when the subway grinded to a halt at the next station. Few got off, but even more packed in. Since we were standing near the door, the sudden quick influx of passengers forced me back deeper into the cabin and separated from Kaitlyn. A little worried, I looked over and saw that she was still there in place, holding the two handles surrounded by people. I was disappointed because I was so horny and yet relieved that I was spared from the teasing.
I just stood there waiting like everyone else; occasionally looking over to make sure she didn't keel over and throw up or something. However, at one point when I looked over, I realized her head was tilting back and her mouth was wide open. Confused, I took a closer look and from the reflection in the window, I noticed her jacket was open and her sweater was pulled up. There was visibly a guy's head at her chest, probably sucking and fondling her tits!
At first I was concerned as a sudden anger came over me that someone was molesting my sister-in-law. However, it was soon suppressed by my horny desires and I was stuck with the dilemma. It is funny how your body can manipulate you. My body had me convinced the cock tease of a sister-in-law deserved it. As I watched, I noticed the man's head slipping down lower on her body until I could clearly see her bare tits reflecting off the window. By the way she was panting so heavily, the man must've been having a lot of fun between her legs.
Surprisingly again, nobody else noticed. This only went on for a short moment before I realized that her arms were weakening, indicating she was about to cum and lose her grip on the handles. That was when a shocking fear ran over me as I watched two other guys put their hands over hers on the handles, keeping her upright. For the first time I noticed she was surrounded by a group of young men.
The subway came to a halt at the next stop and I immediately pushed forward to intervene. However, the men put her arms around their shoulders and rushed out before I could reach them. When I pushed harder to get out, the new passengers coming on board pushed me back deeper again. Frantic, I shoved the people in a panic as several passengers gave me dirty stares. Soon the subway ran off with me on board as I watched the men walked away with her around the corner and up the stairs.