My wife's family has always been odd. Backwoods country with backwoods manners. I'm often surprised my wife is the result as she has always been polite and always presented herself as a lady. Her younger sister Liz, on the other hand, is every bit the expected result of her parents. Fun girl, but too experienced for her 16 years. Well too comfortable with saying "fuck".
Liz got herself into trouble back home and it was decided that she would live with my wife and I in another state. She craved physical attention and would often sit leaning against one of us. It wasn't uncommon for her to push me when walking past or tackle me when on the floor or sofa. My wife thought it was cute and funny that she was so attached to me and would encourage the playful banter.
The playfulness began to change somewhat, but it was never anything specific. When she rolled over on top of me, she would quietly stare. Again, nothing specific, but long enough to take notice. Her hands would wander a bit. Never inappropriate, but on places they've never been like my inner thighs and lower abdomen.
One night, she was being especially nice to me. I was laying face down on our bed talking to my wife sitting next to me. Liz was straddling my legs and massaging my upper back. This wasn't uncommon. In fact, it became fairly routine for her to give me a massage.
I was so deep into the massage and conversation that it took me a while a realize something. I could feel her on the back of one of my legs where she was straddling. I wasn't feeling the fabric of clothes, but bare skin under her short robe. I did my best to carry on the conversation, but all that was on my mind was her on my leg. I could clearly feel stubble from where she recently shaved. I tried to tell myself that she wasn't aware of what she was doing and tried to scoot forward to get myself out of that position, but she planted her weight on my leg to let me know she wasn't finished.
She released her weight and sat up a bit. I could feel the cool air on my now wet leg before she pressed down against me again. Not wanting my wife to know what was happening, I tried to put a stop of it, thanking her for the massage and saying how much better my back felt.
Being the playful girl she is, Liz said "You're welcome." Before smashing my face into the bed and slowly sliding down the back of my leg leaving a trail of her wetness. She then went off to her room leaving me in conversation with my wife and trying to figure out what just happened.
The next morning was just a normal day. As if nothing happened. My wife went to work and I drove Liz to school. I really expected her to mention something about the night before, but she was talking about everything but that. I tried to bring it up, but she pretended she didn't know what I was talking about. We arrived at her school before I could get her to talk about it.
The next few weeks at home were about the same. Nothing happened like before, but it was obvious something changed, but not really in a bad way. We were all getting along just as well as before.
One night, I was lying on my back in bed talking to my wife again. There was a huge pile of laundry next to me that my wife was folding. We were talking about her mother once again asking to borrow money.
Liz came in wearing her short robe. Her hair wet from her shower. She started to help my wife fold the clothes while adding to the conversation. Occasionally, stopping to throw a piece of clothing at my face which I did my best to ignore. After a few minutes of clothes piling on my head, I took the whole pile and tossed it at Liz.
She took that as a challenge and immediately jumped and straddled me. My wife jokingly told her not to hurt me which further instigated and she got rougher. She grabbed me by the wrists pushing all her weight against them. When she sat up it took her a moment to notice her robe opened just enough for me to see her cleavage all the way to her waist. My wife didn't see, but I certainly did. Liz caught me looking and laughed while closing and tying her robe.
I did my best to think about something else, but my mind was stuck on what I just saw and my dick began to swell. She again leaned forward pressing my wrists against the bed. Her face leaned in close and she just stared into my eyes. My wife was barely paying attention to us by then and was watching the news on TV.
Liz released her grip from my wrists and untucked her robe from behind her before sitting back down against me. I panicked from what I felt. My dick was now hard and found its way through the front of my boxer shorts. It was being pinned down by her naked pussy.
I began to struggle, but the more I struggled the harder she held me down. Throughout the struggle, she would discreetly slide her pussy up and down the length of my dick. I could feel her wetness growing and building on me. She continued to laugh and give the impression nothing was happening all the while wetly grinding against my exposed dick.
My wife glanced over a few times, added to the fire with a few comments before looking back at the TV. From her angle and blocked by the stack of unfolded clothes, she was unable to see what was happening.
Liz leaned over while still holding my wrists and pressed her face into my neck. She trailed her pussy down the length of my dick before sliding back up. She lifted up slightly positioning the head of my dick against the opening of her wet pussy and just left it there slowly moving in circles.
I tried to get her to release my wrists, but her grip held tight. I pressed my arms up against her to push her off, but the more I pushed, the more she pressed her pussy against the head of my dick. It was as if she wanted me to push into her first. I did my best to avoid that, but there is only so much I could take.
The head of my dick was just between her wet lips and she teased it with tiny movements. For a girl her age, she demonstrated incredible pussy control as she gently squeezed the tip of my cock with her pussy lips.
I couldn't stand it anymore and pressed my dick against her giving her just an inch. She bit into my neck as I felt her pussy pulsing and gripping me tighter.
She moved her face in front of mine and again we just stared. Without saying a word, we agreed that we weren't stopping. Her eyes remained locked to mine as I pushed up against her hands. As I pushed her sitting up, her eyebrows went up and her mouth slacked open as my entire length was pressed into her.
Neither one of us moved, but my dick twitched inside her and I could still feel her pussy squeezing in pulses. She was the first to break the silence by laughing out loud. I think it was nervous laughter, but I laughed with her.
Neither one of us thought this situation through and we were both too scared to move since my wife was there next to us. Neither of us wanted to stop, but neither of us knew what to do next. My wife unintentionally did us a favor by telling us she needed to go downstairs to get another load of laundry started and move clothes to the dryer. Telling us not to hurt each other as she left.
As soon as we heard her on the stairs, Liz began to fuck me with a passion and intensity I haven't felt since a teenager. We were both breathing so heavy, but trying to be so quiet so we can hear my wife coming up the stairs. My hips were slapping her ass with each upward thrust. We knew we didn't have much time as we both tried to rush our orgasms.
Liz began to shake, then her body stiffened as I felt her pussy began to tighten. Her breathing was forceful and she almost looked pained. After I was sure she finished, I began to take hard full strokes, pulling out just to the tip before thrusting deep into her.
I was telling myself that my wife would be back any second and I slowed my thrusting. When I heard her still downstairs in the laundry room, I resumed my deep stroking until I could feel my orgasm building. Again not thinking this through, I didn't know what to do with it. Liz sensing I was close made that decision for me and pressed all of her weight onto my dick as I erupted deep inside her.
Moments later, we heard the lid to the washing machine close. Liz threw her leg over me and I got my first look at her pussy. My dick was still buried in her and her lips were so pink and swollen.
My wife came in the bedroom just as I was coming out from the bathroom after cleaning myself.
That was a few weeks ago. We haven't done anything since and we never talked about it. The closest we've come to even acknowledging it was me asking her if I needed to apologize and her saying you only need to apologize for things you're sorry for.