My Naughty Sister In law

Samantha, Sam, is my wife's sister and has such a hot body that it's hard to not admire it every time she passes by. She is younger than me, slender with long legs, probably a c cup tits that are usually moving around freely beneath her shirt and she always wears a nose ring. She flirts with me spontaneously when no one else is around, but stops quickly as she regains control of her lust and continues to act the devoted loving wife when others are around.

Her sexually slutty demeanor when no one else is around is something that becomes trapped in my memory to use later as "spank" material when the chicken needs to be choked. I would never fuck her, no matter how much I'd really like too, because I respect her husband and my wife and wouldn't want to cause them that mental pain.

But, I have thought many times that I'd love to see that sexy body uncovered and imagines how her cute little pussy would look. I have thought during a spank-the-monkey session that it would be great to find out that she has been working at a titty bar secretly on the side without anyone knowing and that I could satisfy those desires to see her naked and caress that perfect little bubble of an ass she has. I've had a lot of enjoyment thinking about her with my imagination until one day when I got home from work early, other opportunities presented themselves.

Katie was at work as she usually was at this time during a weekday, but the driveway had two cars parked in it.

I recognized one of the cars as Sam's, but had no idea who the other one belonged too. I was a little aroused that I was going to have the opportunity to possibly barter with Sam with sexual innuendoes, but apprehensive about who the other person was going to be.

I was careful to enter the house quietly and could hear the sexcapade evolving from the closed master bedroom door. This was great, I thought as I quietly moved over to the closed door to listen more clearly. I felt bad for her husband, Tom, but this was really great.

The bed was squeaking and headboard hitting the wall as Sam was obviously getting a pounding! I had to drop my pants and jack off as I listened with the images in my mind of what I imaged her sweet tight little pussy to look like being pounded by this hard cock.

I could hear Sam groaning and panting over the noise of the bed and headboard and when I heard her familiar voices panted to her lover, "give me you cum, I want to feel it inside of me!" I shot my load all over the outside of my bedroom door.

I quickly pulled my pants up stuffing my dick back inside and quietly moved over to sit in my recliner waiting for the surprise when the door opened. I heard them rustling around in there and was just about to get up and surprise them myself when I heard the bedroom door finally open.

It was better than I had imagined as Sam appeared through the doorway in a pretty quick pace towards the kitchen completely naked with those long smooth legs, little titties wiggling and her cute round ass in my perfect view.

"Nice" I announced as my cock noticed her and began to spring back to life. Sam stopped and turned towards me for a picture perfect frontal view except for the shocked pale surprised look on her face. She had that beautiful "just fucked" appearance as her body glistened with her sweat.

She suddenly ran back into the bedroom throwing the door closed as she passed through it. I couldn't remember if there was a lock on it, but I wanted to get another view before she quickly dressed anyway, so I didn't waste any time getting up and entering the bedroom.

Sam was in the bed with the sheet pulled up so only her hear appeared and clothes were scattered all over the floor not in any one place where my imagination summarized the excited clothes removal process that had taken place, more spank material for later!

I could hear her boyfriend in the bathroom behind the closed door moving around and it sounded like water running from the sink. I stood looking at her as the color was reappearing in her face, but she didn't look happy and was unusually quiet.

"Well, you've been naughty Sam. Who's in the bathroom?"

"You don't know him" she meekly responded as she looked up at me.

"Does Tom know him?"

She started to look pale again and glanced quickly down at the bed in front of her, "No!"

"Pull the sheet down, Sam, and let me see what you've been up too."

I thought that I was going to fall over when she let the sheet drop uncovering the cute perky tits that still looked reddish from being manhandled. She looked back up at me defiantly as the color reappeared in her face and a small smile was beginning to form as her true demeanor that I had come to know was beginning to reemerge.

"You're not going to say anything to Tom, are you?"

"That depends on you. Didn't I say to pull down the sheet?"

The smile on her face was beginning to grow as she looked straight at me while tossing the sheet down uncovering that sweet young petite body and she kicked it off of her long legs.

"Spread your legs" I demanded moving my stare up from that body purposefully into her eyes. Her eyes momentarily widened and I thought that I saw a little scared shutter move over her body as she parted her legs and gave me a full view of that cute freshly fucked pussy of hers.

Her boyfriend must have heard us and quickly opened the door seeing me standing at the end of the bed with my eyes fixed on the tiny red pussy with his sperm running out of it. "You're going to stand there waiting to see what I do to you next after having just fucked my wife?"

I never looked his way as he quickly grabbed his clothes off of the floor and left the bedroom to, I assume, put them on before he left. A devilish smile grew on Sam's face as she looked at me staring at her dripping used pussy and she only said one word, "Next!"

"You are a naughty girl aren't you, Sam?"

"Put on just your skirt and shirt and then come out to the living room. Don't clean up, I want you there just as you are and Tom won't find out by me."

Sam was smiling looking comfortable in the situation when I pulled my eyes from her soaked red pussy to glance at her face before turning and leaving the bedroom. I sat on the couch saying to myself, I can't fuck her! No matter how much I want too, I can't fuck her.

Maybe I can just get a blowjob with those sweet small lips and come on that cute face? Reluctantly, no, that would hurt them just as much as fucking her. My dick was back at full attention again, saying fuck that!

Sam slowly swayed into the room her skirt swashing back and forth and her little tits poking against the thin material of her top. She had added one more piece of clothing, her high heels! Nice I immediately thought and then wiped my mouth with the sleeve of my arm, was I drooling?

She stood in front of me waiting for my next direction. I took in her appearance and the long moment that I had that I could do whatever I wanted to that gorgeous body that I had dreamt about so often.

"Turn around."

She slowly obeyed as her hands remained down by her sides. I took my time to take in her vision and rubbed my hard dick through my pants a few times. I reached up towards that cute ass that was pushing her skirt around it's perfect state and lifted up the bottom of it to see her bare!

Oh my god! my head was spinning from the sight as I refrained myself from grabbing it and squeezing those cute cheeks as I looked down to her slim smooth legs.

Then I had a revelation. The perfect thought of what to do with that sexy body and as innocent as I could be for her husband and my wife. Wouldn't that cute smooth white ass look great all red from my hand spanking this naughty girl? After all, she did need to be punished. I couldn't just let her go scott free!

I took a few more minutes to take in the sight and then gave her more direction like she was waiting for, "Lay down over my lap, it's time for your punishment so that your husband will never find out!"

She hesitated for a moment obviously expecting something different, but then compliantly turned around and moved over to kneel on the couch next to me and lay cumbersomely over my lap. I could feel that sexy body shaking a little and my hard dick was really into her smashing down against him.

I ran my hand down the back of her hair, slowly down her arched back, across her skirt covering that nicely round ass, and down one smooth leg hanging down towards the floor. Then I slowly ran it back up her thigh beneath her skirt and over her smooth bare ass as I moved the bottom of the skirt up to her thin waist.

I rubbed across her ass a couple of times squeezing those nice soft round cheeks. My god this was worth coming home early from work, I thought, I need to do that more often!

I lightly smacked it a couple of times watching it jiggle as my cock was wanting loose beneath her. She laid still and I smacked one cheek and then the other a few time a little harder, and then a little harder as her legs began moving back and forth telling me that she was definitely feeling it!

I smacked her cute ass that was starting to redden a little, harder and faster as she wiggled on my lap as the nasty little slut that she was. I heard her whimper and begin wiggling more like she was going to try to move off of my lap and so I put my left arm across the small of her back to hold her down and pushed her legs back down with my other arm.

"Spread your legs" I commanded as I was pressing down on her. When her legs parted showing me her cute little shaved pussy still dripping with her indiscreet load of cum, I slid my hand up it to smear some up between the cheeks of her cute ass and over her tight asshole that I felt winking to my slick touch.

My hand came up from between the cheeks of her cute red butt and I spanked her harder on one cheek and then the other and back as she wiggled on my lap until I had to stop to press her down again while she was whimpering in protest.

As she calmed, I used my left hand this time coming over her body to grab her slick pussy as my fingers slid across her puffy pussy lips smearing some more dripping sperm up across her butthole and the I reached and grabbed her hair with my other hand to force her head to look up as I smeared my wet fingers across her cute little lips.

She opened her mouth to suck the cum off of my fingers as her tongue teased my fingers and I slid them out of her mouth and down across her shirt grabbing her nice little titty and then squeezing her erect nipple momentarily before pushing her back down with my arm across the arch in her back.

My other hand came down hard on her red ass cheek a few times and then the other as she wiggled beneath my left arm across the small of her back. Her legs were kicking up and I pushed down on them with my spanking arm and then roughly shoved three of my fingers into her between those sweet cute little red pussy lips as I felt her used cunt grabbing me.

I pulled them out without continuing to finger fuck her like I wanted to and this time when I smeared her lover's sperm on her asshole, I slide a finger deep inside her feeling her squeezing her butt to my intrusion.

I pulled my finger quickly out of her butt and continued to spank her red cheeks more, one and then the other until she was whimpering for me to stop and trying to reach back with a hand to cover my target.

"Are you going to stop fucking around on your husband?"

"Yes, yes" she whimpered as she was reaching back rubbing her red ass cheeks.

"Are you going to see your boyfriend again?"

"No, I won't fuck him anymore."

I thought for a minute and figured that was pretty good and then she whimpered, "can we fuck now?"

I was actually starting to get angry, what did she just say? I pulled her arm away from guarding her red sore ass and held it with my arm that was across the small of her back holding her down and started spanking her red sore cheeks again, smack, smack, smack, smack, then the other one, smack, smack, smack, smack!

She was wiggling and kicking and finally whimpered out, "ok, ok, I won't fuck you!"

I released my hold of her watching her cute red ass cheeks as she slid off my lap kneeling on the floor next to me reaching back to rub her sore ass.

Her tits were pointed hard against her shirt and her face red from her punishment and my dick rock hard from her sexy body when she whimpered out, "can I just blow you then?"

I immediately reached over to pull her arm that was reaching back to rub her sore ass and tried to pull her back over my lap as my other hand swatted her ass quickly as I noticed that her skirt had covered it. She was trying to stand up and pull away from me fighting making me more determined as I stood up while still holding her arm.

I pulled her over to the couch as she fell forward catching herself with her other hand and her knees buckled as I swatted her ass as she was bending over. I tried to spank her lower with that swat to get her bare ass, but felt her wet pussy against my spanking hand as it made contact with her right between her legs as she was bent over.

Surprised, she immediately responded with a loud, "OUCH" and tried to stand back up. I pushed her face down on the couch with her knees on the floor and put my knee against her back to hold her down, raised her skirt up and spanked her red cheeks four or five more times each before I let her up.

She ran into the bedroom leaving the door open and I felt bad about spanking her pussy and went in as she was pulling her panties on beneath her skirt. I noticed her titties were still pointed hard against her shirt & told her that I was sorry for hitting her pussy and that I only was trying to spank her ass.

She looked up smiling at me with that devilish grin and said, "I liked it, I've never had it spanked before. It just surprised me."

My dick was still rock hard in my pants and I began thinking, oh fuck, I could have spanked that little puffy pussy more if I had known that she was into it. I was trying to think of how to work that back into our lesson when she walked past me to leave the room.

Sam leaned over as she passed, one hand held her high heels and the other quickly grabbed the hard bulge in my pants squeezing it as she whispered in my ear, "Let me know the next time you want to spank my pussy!" and she was gone.

I sat down on the couch dropping my pants and began jacking off to her whisper in my ear and how her cute little used puffy pussy felt when I smacked it, how red her cute little bubble ass was, and her perky little tits poking against her shirt.

I was squirting in no time finally getting some relief without violating my wife's sister's pussy or mouth. I had been a little bad, but Sam needed punishing! I'm sure Tom would appreciate it.

A few days later, Sam and Tom were over at our house for a BBQ and she was looking so fine as I followed her curves around her tight clothes with my eyes remembering those great features. She acted like the sweet devoted wife around everyone and not the cum dripping slut that I had seen.

When I went inside to pee and walked past Sam who was heading back outside she smiled at me and reached back to pat her cute ass with her hand and lick her lips. I went back over to the BBQ to check on the steaks and Katie came up behind me leaning over and whispered,

"Do you want to spank my pussy next?" and walked back to the group. OH FUCK!