Wife's Step Sister SeXStoRY

My wife and I have been together for just over 10 years now and what used to be the hottest sex on the planet has cooled off somewhat over the past year or so. Don't get me wrong, still in love, but the stresses of life can take the "HOT" out of it and more often than not our love life seems routine. I'm in my mid 40's, 6'0", 205 lbs, dark skin, brown hair and brown eyes. I don't workout, I work. I only run if someone chases me, but I stay active and in shape. I've never had any problem with the ladies, but as age rolls on, you kinda lose perspective of giving a shit whether you are still someone that walks around exuding sex. My wife is almost 10 years younger than I am and she definitely STILL does exude sex and what makes it so hot is she hardly recognizes it. She's athletic, 5'6", 36DD, auburn hair and green eyes. Can't forget that ass! Not outta shape but large enough to get a handful of or spank like there's no tomorrow. The sexiest thing about her is she loves this life and it shows. People smile when she walks in a room. Like I said, we met 10 years ago, and when we did I had no idea that my wife's sweet little half s****r that shared the same positive loving outlook on life that my wife had, would become one of my closest friends OR grow up to become such a sexy being. Her name is Dana, and again, she's my wife's younger half s****r, which is why she looks nothing like my wife. She's short, petite, fair skinned with a tight little ass and a great set of 32C tits. Blonde hair, ice blue eyes and a smile that can melt a man in seconds. After she graduated high school, she moved from living with their mother 2 states away, and moved in with us. She eventually got a job, her own place and has been living her little life happily for about 3 years now. She's learned to party but still lives life fairly responsibly. (I must admit I might of had a little bit to do with that) It seems she also learned that she could get almost any man she wanted in our little town, but she's stayed humble, was cool about it and didn't turn slutty. We would hang out, burn one, she'd tell me about what she'd been up to, everything from her job to how she felt excited to be maturing enough to experiment sexually. She would go on about how she "fuckin loved" watching porn while high and getting off multiple times with or without a partner. I'd sit there and listen and think...REALLY!? and I have to continue to NOT FIND YOU HOT AS HELL!?! She's now past her mid 20's, we hang out a lot as my wife works evenings, and I have found myself growing hard whenever she teases me with some little blouse and tight jeans, telling me what she's currently into fantasizing about. We are buds and she tells anyone and everyone that I am the best b*****r in law on the planet because I am always there for her and always there to help her through good times and bad. It's true, I have been proud to share some of my experiences of growing older with her and to her credit, she's cool enough to take it to heart sometimes and then sometimes not so much and learns the hard way. You get the point, we're close. I'm not sure when it exactly started, but lately she's been downright flirty, at first I was a little surprised, shocked even, but that wore off fast and I quickly learned how to just play it off and continue the roll as older b*****r in law platonically. Now, I haven't ever really been one to jerk off a lot, but lately I've beat my 8" inch cock like it owes me money thinking of Dana!! Last week, I pulled into the driveway after a long day, to see her little sports car in the driveway. My dick was swelling by the time I made it through the door. My wife was working. She had let herself in. (no biggie, she has a key) I walked in the door to yells of "party-time!" from the living room. I untucked my shirt to relax, walked down the hall and found her alone, chillaxed on the couch with a day glow green set of high cut panties, a tank top that was struggling to hold in those ample fair skinned tits and her hair still damp and curly from a recent shower. That's Dana, doing the "s****rgirl" thing of effortlessly being smoking hot, cool as hell, sippin on a beer and taking bong hits. She loaded the bong and ordered me to get my old ass over there and "wrap my sexy mouth around the pipe and get my buzz on". Not a problem, soon as I start to fire up, she leans in, puts her wet head on my shoulder and tells me how the thought of my lips sucking long and deep to finish a bong hit had been what made her cum hard not 15 minutes earlier in the shower. <GULP> That's it. I wanna fuck the shit outta "s****rgirl"! I know the amateurs she's give it to, hell, she's told me of their lame attempts to rock her world. I'm not trying to sound conceded but once you get a certain age with a history of relationships and you genuinely give a shit at all for the women you've been with, you have to be a total idiot not of been able to pick up on what works. Right?! Men that get in, get off and get out, haven't figured out that laying in there and doing whatever it takes to make a woman cum is the pinnacle of pleasure. I would camp out on her pussy until she quivered, begging me to stop and that's what I was ready to do! TIME OUT! FUCK! I'M MARRIED TO HER s****r! I slowly continue clearing the bowl and realize this can't happen. While my attention has been on the sweet green chiba, I haven't realized she's leaned back on the couch, turned on a DVD, turned off the sound, and is watching some hottie getting her pussy eaten by Evan Stone on my 52" HD flat screen TV. As I turn to ask her what's got into her today I see she has one hand down the front of her panties and she's rubbing her wet clit so slow and hard I can hear her wet pussy lips making squishy noises between her soaked fingers. I know she notices my cock hardening under my work shorts because she says to me, "you know my s****r told me about a year ago when we were shitfaced one night that your dick has ALWAYS made her cum hard". "okay, that's it" I tell her. While flattered and so fuckin hot for her it wasn't funny, this cock could not do the same for her. To my surprise she took her other hand pulled the tank top down, pulled out a perfect round firm tit and began pinching hard on her pencil erasure nipples and said, "You're right, I have a counter offer, no kissing, no sweet talk, no pleasantries, I'm gonna sip this beer, light a cigarette and peal off these panties and you my big brutha-in-law are going to get rid of your cottonmouth with my pussy juice." Sounded tempting, but I told her "that couldn't happen". She continued her negotiations relentlessly, telling me all she needed was for me eat her pussy like her big s****r had said I had eaten hers so many times. She had heard the jokes her s****r had made to friends about how a clean, well groomed snatch could keep my mouth's attention indefinitely. (Just a simple fact that that wouldn't be so funny, if it weren't so true! I'm a simple dude,I love to eat sweet pussy!) The entire time she's pleading her case she's lost the panties and tank top, laying on her back longways on the couch rubbing her clit, pulling on her now bright red nipples. She throws one leg over the back of the couch and puts the other firmly on the floor exposing this now glowing hot, moist burgundy pussy and says "you're my most trusted friend, this stays between us, please bury that face I know and love into this young girl's snatch.." At this point, I'm stayin strong but she's almost got me. I can't take my eyes off her, she then circles two of those little dainty, pussy juice soaked fingers around her tight little asshole and pops one in her anus losing her breath as her eyes roll back in her head. I've managed to squirm my rock hard cock from under the leg of my shorts and have started to rub the precum around the underside of the head of my cock in a slow rhythm while she has been preaching for me to maow on her tight little box. I calmly tell her with a sly grin half k**ding, "ONLY if you fuck my face while I bite down on your clit and lick your pussy lips until I'm coated with your cum". All she does it put a pillow behind her head so she gets a clear view what's about to happen and giggles a soft little "fuuuckk yea". I dive in to her sweet little hole tongue first, exploring as deep as I can, one deep tongue ram after another. When my tongue is fully extended into her, my lips bump into her labia and I exhale long, hot and wet on to what is now a sopping wet pocket of lust between her legs. She does as she was told and fucks my mouth wildly, grabbing the back of my head and starts bucking her clit onto my teeth. Immediately she lets out a long moan, and starts babbling on how she's never came like this before. Begging me to never stop. When she stops quivering, she exhales and tries to wipe the sweat from her forehead. I then slow down, stick my tongue out wide like attempting to not let an ice cream cone melt, grab her behind her knees and pull her legs into the air in front of me, I lift her ass up off the couch and begin to lick her slow and hard from the top of the crack of her tight little ass, wide tongue lapping across her burning pussy lips, slowly across that hard little swollen bud towards her belly button as I drop her back down. Lift her again and repeat this hard and slow, only pausing at certain spots to give a flick of the tongue. She tries to sit up, I quickly throw her pussy up to my mouth again, she then starts laughing and frees her legs from my grip with one forward buck. Half giggling, half moaning she throws her thighs around my ears tight and breaks bad on me. Telling me I get no air, that she's gonna ride my face hard until I drink her cum! And she wasn't k**ding, I would gasp a breath in through her wet pussy but I never let up. She yelled, came, giggled, then came some more. Finally she grabbed my hair and pulled my face from her now swollen, sore snatch. She laid there laughing and purring, telling me she has always seen it on her s****r's face that sexually she was satisfied. I sat forward on the couch lit a smoke and told her this couldn't happen again. She said, "no worries, I can now tell a man how to eat my pussy." I looked at her gathering herself, pulling her tank top back on, she sprang up, picked up soiled her panties and sauntered off telling me she was gonna have to go get a dry pair to put on. I watched that tight ass with a still dripping, glistening crack walk out of the room. As she went down the hall, she yelled "there is one more thing YOU have to let ME do!" I thought "no fuckin way". She's not sucking my cock, she's not riding my cock, it's not gonna happen! My still rock hard dick had cum all over it, I never felt like I had climaxed, I guess it just oozed out during the mallei. It didn't matter, she was NOT gonna get my cock, it was strange of me to think but my tool was my wife's and when Dana returned I calmly told her as much. To my surprise she nodded and agreed whole heartedly. She reached down under the couch pulled out her s****r's Hitachi massager, turned it on slow and welded it back between her legs. With a smile of pleasure, she turned very serious and said, "as much as I would like to, I'm not touching that fat cock of yours, it wouldn't be right". (like right and wrong was still in play at this point I thought) She then commands, "I WANT YOU to pull on that cock of yours while I watch and tell you how to do it until I've coached you to the point of draining it, I'm gonna have you milk every drop onto my tits so I can lick your cum off my nipples." She tosses me a bottle of lube she must have had stashed in a couch cushion and told me to cover from the purple head to beneath my balls with it. She made me squeeze my cock so hard she could see the muscles in my forearm straining. Just when I was about to cum she would make me stop and have me grab the base of my cock with all my might and not move until it would try to go flaccid. Then have me lube up again only to have me jerk it as fast as I could only to then make me stop again. There I sat out of breath, my arm muscles burning, Dana demanding not to continue arousal until I was almost soft again and she gave me permission. My balls were now aching, she reaches around her head and takes her hair band that she had just 15 minutes earlier put her hair up with and has me double wrap it around the base of shrinking member. She picks up the pace on the massager on herself with one hand and empties the bottle of lube on my cock and balls by squeezing it out of the bottle with fairly good aim from about 6" away from my twitching prick and begins to lustfully give orders on how for me to stroke while she starts getting winded from her own arousal. I turn rock hard for a third time following every one of her commands. When she starts to cum she has me standing up flailing my tool so fast I can hardly focus on my fist and I feel this tantra load getting ready to burst. The head of my penis is burning from the friction, she reaches her arm under my ballsack between my legs and grabs the back of my ass without touching my cock or hampering my efforts, sits up and starts begging me to shoot every drop on her tits. Just then she says, "I'm gonna cheat a little". WHAT?! I think to myself. Still yanking my dick hard and fast I manage out,"I'm serious Dana, don't touch my cock!" She looks me dead in the eye and tells me, "Now I promised I wouldn't touch it and I'm not going to break my promise". As soon as the word "promise" passes her lips she grins and firmly shoves two of her wet fingers into my ass. I'm DONE! The term "mother load" has been used before but pails in comparison to what I soaked her chest with. Never letting my throbbing unit touch her I coated my sweet little buddy's chest while she pumped my anus gently. That's it. We both caught our breath, toweled off, even had to clean couch cushions and dry them with a hair dryer. We were high and spent and still buds. Every once in a while she'll look at me and grin that little grin and tell me she's glad I married her s****r.