You had to go investigate

You lifted the blanket off your erection then tried to stealthily roll off the couch. You landed a little harder than you wanted to but that at least served to jolt you more awake. Like a weird horny lizard you started to crawl across the living room floor, your butt up in the air so that you didn't drag the front of your tented shorts on the rug.

You quietly passed the dark kitchen and entered the hallway, surprised to spot a spot of light on the wall opposite the door of your aunt's bedroom. Shadows flicked and you could hear faint sounds and a little giggling. The door must have been open... you realised, slowly approaching the light like a moth to the flame. You got into a crouch next to the doorway and swallowed, whispered voices within now quite clear.

"Wow you did get fat...ow!" said your aunt, who then laughed. "I was joking, Pat!" There was the soft sound of a kiss, you imagined.

"You're no spring chicken yourself," said your mother, her breath a little laboured. "I remember thinner thighs..."

"Yeah well we were teenagers back then," responded your aunt. There were no words for a few seconds, just the sound of soft skin sliding over each other. You swallowed, gripping onto your firmness over your pants and battling inner thoughts. There was a moan that drifted to your ears, so full of want and longing that you couldn't stand it any longer. You slowly, with great care, craned your head to take a peek inside the bedroom. Your jaw dropped.

"Ahh... fuck..." your aunt moaned quietly her eyes closed and head rolled back, her hand in her sister's hair. Your mother's face was buried in your aunt's breast, hungrily sucking on her nipple, her hands gripping her ass. Both women were completely naked, their sapphic embrace on the bed like a beautiful painting of two goddesses, the dim bedside lamp lighting their curvaceous forms in soft reliefs of light and shadow. "You love tits huh?" your aunt said, pulling your mother's face up from her chest then kissing her. Your mother broke away from the kiss with her tongue still licking after her sister, hands caressing her neck.

"Everyone loves tits," you mother said correctly.

"Mmmm," agreed your aunt who took two handfuls of your mother's for herself then ran her tongue over their swell. Now that you could see both women in all their glory, their attentions seemingly completely involved with only each other, you could see the differences in their body types. Your taller aunt had a thinner waist than your mother, and seemed to have more reach as she pulled your mom into her with her hands gripped so deeply she had fingers slipped into her crack. Your mother had wider hips and slightly bigger, heavier breasts, almost as if being a mother had made her body more motherly than her lesbian sister. "Remember when I came out to you?" said your aunt, reminiscing and brushing hair out of your mother's face. "You wouldn't look me in the eye for a whole week."

"I felt so guilty," your mother replied, then moaned when her sister's hand slipped between her thighs.

"Guilty?" Leslie asked curiously.

"Yeah I thought... I thought I turned you... uh...uh..nnnn... " Patricia started, then faltering as she felt her wet pussy starting to clench. Noting the break in conversation your aunt moved in and kissed your mother again, the women groaning into each other's mouths. "Fuck... haa...ha..." your mother breathed, needing a moment to catch her breath. "I thought I turned you into a lesbian," she continued.

Your aunt looked puzzled at this and your mother leaned down and gently kissed her collar bone. "I taught you how to masturbate," she reminded her. "I showed you...everything..." This put a big smile on Leslie's face which then turned into an almost pained one as your mother's fingers found her lower lips.

"Oh I definitely remember that night," sighed your aunt, her legs now tangling with your mother's as she moved her hips closer. "You said that getting yourself off was the greatest feeling in the world. But I knew I was a lesbian way before that, Pat.... oh god... Pat...don't stop..." She didn't, and you had to wipe drool from your mouth as you watched your mother finger fuck your aunt while sucking on her breast until the short haired lesbian burst out with a guttural sound of ecstacy that only her sister could bring on. The loudness made both you and your mother jump and Patricia rushed up to put a wet hand over her sister's mouth.

"Ssshh!" your mother hushed urgently, but visibly giddy and holding in her own laughter. Catching herself then your aunt started giggling, curling her self and warmly embracing your mother. They continued to kiss, hands unable to keep from exploring each other's sweaty bodies.

"When did you know you were bi?" Leslie asked. Patricia decided to kiss her sister long and deep before answering, rolling her onto her back on the bed and pinning her down. When they broke they both gasped and started quietly laughing again.

"Probably in college," your mother started, to answer the question. "I came to the conclusion in the middle of having cock up my ass and my face buried in pussy." This made your aunt laugh more.

"Jesus," she chuckled. "So it wasn't just a phase then huh?"

"No," said your mother, sharing another tender kiss with your aunt. "I'm still playing both sides... you should try cock some time. Highly recommended. It's pretty fucking fantastic." There was only a smile and silence from Leslie and she kissed her again. If she only knew. You could barely believe what you were hearing and seeing and pinched yourself, painfully, to make sure this was not some fantasy you were dreaming up.

"Speaking of face buried in pussy," your aunt whispered, shifting her body beneath her sister.

"Oh god it's been a long time," admitted your mother as she turned around. You ducked out of sight for a moment and continued to listen with your head against the wall. There was again the silky smooth sound of body's rubbing along bodies and the sweet giggling of naughty sisters doing bad things to each other. You held your breath and dared another peek. It was almost like they were performing for you with how perfectly they were positioned on the bed. You could see them both clearly, your mother on top of your aunt, flipped head to toe in the classic sixty-nine position. Their perfect curves and smooth lines melded together and your mother's face disappeared beneath her hair as she, quite frankly, buried her face in pussy. Your aunt's face was also lost between your mother's thighs, a busy hand also working her cunt, which you could see was dripping down your aunt's arm. They moaned into each other's crotches as they worked fingers and hands into their nooks and crannies, slipping tongues to lap up each other's liquids and nurse their desires. They got into an easy rhythm, their hot breaths and and writhing form urging each other on. "Les...ohmy god Leslie... mmmmphh..." wheezed your mother before smothering herself with pussy again.

"Ahhh Patty... mnnn..." sighed your aunt, her hips thrust upwards, humping your mother's face as she did ground down onto your aunt's. Watching them both orgasm like this alone was almost enough to make you jizz your pants, free hand. They held onto each other as their bodies convulsed, their stangled moans echoing with a warm joy that made you blush to the ears. It was wet and it was hot and it went on and on, both women continuing to relish in each other's forbidden delights until their bodies went limp and sank into the sheets.

After a few breathy seconds they gathered each other up, embracing, breasts pressed together, tasting each other's lips and tasting themselves. They did this for what seemed like a long long time too until finally they fell away from each other and lay contently side by side, arms locked, hands held, fingers entwined. "Now that is the greatest feeling in the world," stated your aunt.

"Mmm... second greatest," countered your mother. "The actual greatest, and sorry but you'll think this is gross coz you're a great big lesbo, is actually feeling a guy cum in you. Deep in your cunt. Oh god. When he pumps it all out... fills you up. It's so creamy and warm like... oh my...oh my god!" Your mother sat up suddenly, an epiphany hitting her. "Is that why were laughing at the cream pie stuff? Is that what-...oh my god!" Your aunt started cracking up then, slapping the bed with her free hand. She continued to laugh as your mother recalled with horror the look on your face from earlier.

You smiled, then took this as your cue to leave the scene and returned to the couch like a super horny ninja.