It was summer break, and I was spending a couple of weeks at home. The folks had made plans, so over this one weekend it was going to be just me and my younger sister Tracy. It was a Friday night and she was going to a party with one of her girlfriends. I'd told her after a night partying with some buddies, I probably just end up crashing at one of their places. And that's why Tracy wasn't expecting me to show up. But, as things worked out I actually beat my sister home.
It wasn't even midnight when Tracy showed up with her girlfriend Julie in tow. It turned out that they hadn't realized I was home. And, I'd didn't know that they were, until I headed in for a shower.
Our bedrooms are at either end of a hall, with our bathroom separating them. So, I heard them giggling, and thinking they sounded a little buzzed, I stopped to listen. It was obvious Tracy was trying to talk Julie in to something. But all I heard was "Come on, don't be chicken...you said you wanted to try it...and anyway, what's the big deal?" Of course, I was instantly curious, my naturally dirty mind flashing to an image of the two of them naked and sixty-nining. But thinking, my sister, no way; I started for the shower.
Curiosity peaked, I stepped in to, and right back out of the shower, deciding sneaky quiet was in order. So silently, I pushed the bathroom door open, and listened. And I was in time to hear Tracy's "Yeah, well you're sure you're good with it?"
There was the sound of shoes hitting the floor, and then the unmistakable sound of a zipper being pulled. And it was Julie I heard saying "Sure, yeah why not...oh fuck, sure, as long as you're not expecting me too!"
Leaving my wet bathing suit behind, I wrapped a towel around my waist, and crept silently down the dark hallway. But even before I reached the door, I could see Tracy's bed in the reflection from her closet's mirrored doors. And despite my very active imagination, I still could barely believe my eyes. Julie was stretched out on the bed, bare ass naked, with my equally naked sister laying between her spread legs. Tracy had her hands resting on Julie's thighs, and I wasn't the only one staring hard at her fully exposed pussy.
Julie's the same age as my sister, and they both just graduated from high School. I'd always thought Julie was pretty cute. She's a red head, and as I'd just discovered, one with only a tiny trimmed triangle of pubes. Tracy's prettier, but for sure Julie's big round tits and her tight curvy ass make her a real hottie! But then, with my sister lying on her stomach, I couldn't see her tits anyway.
Creeping a little closer, I still had that mirror view, but I also had a direct look up between my sister's legs. And I sure hadn't expected to find myself staring at my sister's pussy, or to discover that she kept it shaved completely bare. But then, I wasn't expecting to find her lying naked between her girlfriend's legs either! Now I don't mean to whine; only, neither angle gave me a view of what Tracy's tongue was doing to Julie's pussy. Tracy had squirmed in closer, and then just gone straight for it. And whatever she did it sure didn't take her long to turn Julie's giggles in to a breathily gasped "ooh...ooh...God yes...yes, like that!" And considering she'd seemed reluctant, it surprised me when Julie grabbed a double handful of Tracy's hair. Oohing and aahing, she held Tracy's head in place, like maybe she was afraid she'd stop or something.
No worries! Nope, because what Tracy did was, slide her hands under Julie's thighs, lift them, and push them even wider apart. Awesome, because then I could clearly see my sister's tongue in action. Tracy still held Julie's thighs pushed wide apart. So when Julie let go of her hair, and used her fingers to fold back her pussy's labia, I could see the darting tip of Tracy's tongue race, flicking over one thoroughly exposed bit of very tasty, and very wet looking pussy.
My towel had fallen away, back when my cock first sprang to rigid attention. But, it wasn't until I saw Tracy start tongue fucking Julie's pussy that I reached for my cock. I watched my sister's tongue popping in and out of that tight little opening. And it sure had me wishing I was up there between Julie's legs, furiously pumping my cock in and out of that pussy. But I couldn't help wondering; if there positions were reversed, would I have the balls to crawl up between Julie's legs? I figured, no way would I pass up the chance to bang Julie, and for sure not if I'd get to watch her eat my sister's pussy while I did it!
Tracy was giggling when she released Julie's thighs, pulled back, and lay there with her chin resting on her hands. Then, almost sounding dreamy , she explained "Fuck Julie, I love doing it! Honestly, it's a total turn-on! And seriously Julie, if you don't reconsider, you're an idiot!"
"Yeah, yeah, we'll see," Julie told her, sounding like she meant it, when she added "Now do it to my clit some more...Jesus girl, you almost made me cum!"
Instead of the smartass response I expected, Tracy "blurted out a surprised sounding "Really, no shit!" And then wrapping her arms around Julie's thighs, my giggling sister teased "You want to cum...really? Hey, I can do that!" And unfortunately, for several long minutes, I couldn't see any more of Tracy's tongue, or Julie's pussy either.
Still, it sure didn't look like my sister's novice tongue was going to have any problem delivering as promised. So while I stroked my own cock, I watched Julie wriggle and writhe. My sister held her girlfriend pinned down, her head whipping back and forth, as she alternately whimpered and pleaded. And then suddenly I was listening to Julie scream "More, more...yes, oh God yes...you're going to make me cum!"
Only I figured Tracy backed off way too soon. Seriously, Julie was still gasping out yes's, her back was arched, and her outstretched arms were quivering a foot off the bed. And when Tracy released her thighs, and pushed herself in to an upright kneeling position, Julie cried "Hey, don't stop, come on, again...yeah one more!"
When Julie tried giving Tracy an encouraging nudge with a foot, Tracy caught it. Then she grabbed the other one, ordered "Leave them right there," and positioned them against her shoulders.
Now that was fine by me, because it gave me an absolutely terrific look at Julie's practically dripping wet pussy. Seriously, even her thighs were glistening with her juices! Then Tracy, with just a hint of sarcasm, asked "So you won't do me huh...yeah, but you want seconds?" But she was giggling when she added "Well it lucky for you that I just happen to really like eating pussy, now isn't it?" Only, at the same time, she was running her hands down Julie's inner thighs. Using a thumb and finger to spread Julie's labia apart, without hesitating, Tracy pushed two fingers in to her exposed vagina. Only when Julie bucked up to meet her next hard thrust, she yanked them out.
