Lizzie woke before dawn. She smiled in the semi-darkness of her room as she opened her eyes, savouring the tingly feeling between her legs. Today was the day.
She pushed aside the covers and sat up in bed. She was not surprised to find that her light blue, cotton pyjamas were slightly damp about the crotch. It wasn't from pee, despite how badly she had to go. She'd drunk a couple of pints of water before bed to make sure she woke early enough. She stripped off the garment and walked, naked, to the bathroom. Through the other bathroom door, she had a good view into her aunt's bedroom, the predawn light revealing a bed neat and unslept in. Perfect. If Aunt Lyssa had chosen tonight to sleep in her own bed, it might have messed up Lizzie's plans; but, apparently she had worried needlessly.
When she had finished peeing, she paused to look at herself in the full-length mirror on the bathroom door. She had sharp, blue eyes and soft, rounded nose. Her brown hair hung to her shoulders. She had a slim, tanned, athletic body, an effect of regular training with her school soccer team. Neatly-trimmed, black pubic hair revealed pussy lips that were visibly damp despite having just been wiped. Her breasts, nipples erect, were the size of apples. She knew that she was pretty and sexy.
The girl grinned at herself, excited, anticipatory, slightly scared; then, still naked, she opened her bedroom door and crept noiselessly to the end of the hall and opened her mother's door. She could make out two lumps under the covers, the two people she loved most in the world.
Lizzie hesitated in the doorway for a moment. Maybe they'd be less pleasantly surprised than she'd imagined. It was kind of a big thing she planned to ask for. To spring on them as they woke up, really. But, then she smelled the air in the room and changed her mind. It was hours old, but it was clear what had been going on in this room last night, and the thought of it made Lizzie tingle all over. She'd planned this for three years. She'd forgone her usual masturbation for a week to get in the mood. She was going for it. What was the worst that could happen, really? The teenager closed the door behind herself and, carefully climbed into the bed. Someone grunted slightly in their sleep, but nobody woke. She snuggled close to the nearest warm body and waited.
Lizzie hadn't expected to be able to fall asleep again at this point, but apparently she had been wrong. The next thing she knew, she was being gently shaken awake. "Lizzie, Honey, are you OK?" asked a familiar voice.
"Yeah, Mom, I'm fine," said Lizzie, forcing herself back to consciousness. It was lighter in the room now — the sun must have come up properly while she was asleep — and her mother was leaning over her, her brown eyes narrowed in concern, her short, black, hair disordered by sleep.
"You're sure nothing's wrong?" her mother said, holding the bedsheet to her chest like a person who isn't wearing anything under it. Her hands bore a crisscross of fine scars from a long-ago accident. "I mean, the last time you slipped into our bed in the middle of the night, you were six years old and frightened of the thunder."
Lizzie laughed. "Didn't hear any thunder last night. I just wanted to see my mom and my aunt."
Aunt Lyssa leaned forward to be seen around her big sister, smiling at her niece. The sheet had fallen to her waist, baring her grapefruit-sized breasts. "Big day, today, kid," she said, pushing a strand of red hair out of her eyes.
"Lyssa, you're— not that I don't appreciate the view," said Lizzie's mom smiled lustfully, "but, we're not alone."
"So what? Lizzie's a big girl, Lina. If she was embarrassed, she'd have worn something herself."
"Yes, I was wondering about that." Lina turned back to her daughter. "Lizzie?"
Lizzie swallowed nervously. "I... I love you, Mom. And you, Auntie..."
"Aw, we love you, too, Honey."
"...and I know you love each other, and some of what you do to show each other that..."
"I'm not sure how appropriate—"
"...and it makes me hot to think about it. I mean, you can see how— how wet I am down here..."
"Well, Honey, that's a normal part of growing up..."
Lizzie hesitated, and was surprised when her aunt jumped in. "It sounds like someone wants a couple of older women to help her lose her virginity."
"Alyssa!" Lina yelped.
"No, Mom, she's right. That's exactly what I want."
Lina looked at her naked daughter, and for a second, Lizzie thought she saw her mother licking her lips. Then, she quickly shook her head, as though to clear it. "Honey, that's... that's incest."
Lyssa let out a snort of laughter. "Says the woman who just spent the night doing naughty things with her sister. Anyway, I seem to remember someone telling me that incest wasn't bad if it was just girls. Who was that, again?"
"Well, you weren't a child when I said that. This would be child abuse."
"Mo-om," Lizzie said indignantly, "did you forget what day today is?"
"No, it's your birthday, Baby."
"My 18th birthday. I'm not a child, Mom."
"Good one, Liz," Lyssa grinned.
"How are you so OK with this?" Lina demanded.
"Me?" asked Lyssa. "I'm in bed with two hot, naked ladies who I love. How am I not going to be OK? The real question is, Lizzie, are you sure this is what you want?"
"Yes, maybe you should think about this for a while," said the mother, shifting her weight and pressing her legs together under the sheet.
"I've been thinking about it for three years," said Lizzie. "Remember when you left the door open and I saw on you and Lyssa ... doing it?"
"Oh, god, I nearly forgot about that. But, you said you were OK." The mother quickly looked away from her daughter's wet pussy, focussing instead on her face.
"I was. Just... really turned on. I think about it whenever I ... y'know ... touch myself."
Lina seemed a bit shocked, but Lyssa just nodded. "So, you saw your mom's lips on my pussy, and you were waiting until you were 18 so you could get that for yourself."
"Basically. But, I guess Mom doesn't— look, I'm sorry," said Lizzie, embarrassed. "I didn't think it through. I'm gonna go now." Lizzie got up, leaving behind a small spot of pussy juice on the bedsheet, and started toward the door.
"Well, come give your auntie a kiss before you leave," said Lyssa. Lizzie turned back and went to kiss her aunt on the cheek, but Lyssa turned her head at the last second and kissed her on the mouth. She felt her aunt's tongue on her lips, and she instinctively opened her mouth. The woman pulled Lizzie down on top of her, hard nipples on soft breasts stimulating her niece's breasts, her tongue playing about with her niece's tongue. It made a pleasurable shiver go through Lizzie's body, and had a similar effect on her watching mother. When they separated, gasping for air, Lyssa turned to her sister, green eyes flashing mischief. "Tell me that didn't turn you on. Tell me you're not sitting in a huge puddle right now, and I'll back you up and convince Lizzie to fuck someone her own age."
"You know that's not the issue. Lizzie is so hot... oh, god, I've been ... 'sitting in a puddle' most of the time, recently, when she's in the room. But, she's my baby—"
"Was your baby," Lyssa reminded her. "Now, she's a hot young lady who wants your pussy."
"Oh, Mom, I didn't know I did that to you." Lizzie rolled off her aunt and sat up between the two older women.
"Guess I've been reaping the benefits," Lyssa grinned.
"Look," Lina said, pulling off the sheet. Her avocado-sized breasts sagged only a little, nipples a few degrees off horizontal. With her legs pressed together, a small but literal puddle had accreted in her crotch. She opened them, letting it soak into the bed and showing her daughter her vagina. Only a fine stubble marked where he pubic hair grew, her lips were slightly puffy and spreading themselves, and her clitoris was poking its head out of its hood.
"Wow," said Lizzie, leaning closer, smelling her mother's wetness. "Can I— can I kiss it, Mom?"
Lina licked her lips. "You're sure this is what you want, Honey?"
"I'm sure, and I'll tell you if I stop being sure."
"OK, come kiss Mommy's pussy, Honey."
Lizzie knelt down to do so, but Lyssa put a hand on her raised butt, stopping her. "Don't just go straight for the pussy, Liz. You wanna tease her a bit first."
"No, she doesn't," moaned Lina.
"Trust me," said Lyssa, "I've been doing this to your mother for a while. Kiss everything but her pussy, and work up to it."