Alex Mack came home from another day at school and went upstairs to her room. She went in and dropped off her books and looked around. Her sister, Annie, wasn’t home yet, so she had her room to herself for now. Alex ran a hand through her light brown hair and then took off her flannel and pulled her t-shirt over her head. She shucked her jeans and headed for the bathroom, clad in only bra and panties.
Alex went into the bathroom and headed towards the bath tub. She turned the water onto a warm temperature and let it run for a bit. When it was filled enough, she dropped her panties and bra and hopped in. Alex always preferred baths to showers, since she could spend more time relaxing. With the Paradise Valley Chemical Plant always looking for her, it was hard to have enough time to relax during the day. Ever since she had been sprayed with GC-161 and had developed super powers letting her morph to a puddle of water or zap bolts of electricity into things. But now in the bathtub, she could forget most of her troubles and just relax.
Alex took the bar of soap and ran it up and down her body, over her pert breasts, almost finished maturing. She slowly rubbed her nipples, bringing them fully erect, like little button knobs. Alex ran the bar of soap down to the ends of her legs and then between them, down to her beautiful pussy. Alex ran her fingers through the soft pubic hair covering her sweet snatch, feeling the lower part of her body tingle. Alex had just begun to explore the wonders of what she could do with that part of her body. She had only found out about it a few weeks before when she caught a glance of her Annie masturbating in the shower. Annie hadn’t seen her, but Alex saw enough of what Annie was doing, and later tried it out and discovered she loved the feeling.
Alex stuck one of her fingers up into her pussy and rubbed it in and out, between her pussy lips. She soon found herself feeling waves of small pleasure. She closed her eyes and continued finger fucking herself. The pleasure she was feeling was enough to make her tune out the entire outside world. She then stuck another finger in her pussy and now had two going in and out of her.
By this time, Annie had gotten home. Annie, now coming close to graduating from high school, was often described by her parents as a science freak and had been keeping track of her sister’s new powers, ever since she had been sprayed with GC-161. Annie didn’t have much time for going out with boyfriends, although she had the body to do it. Her shoulder length black hair, and ever-growing C cup got stares from some of the other science nerds. She climbed up the stairs to her and Alex’s room and saw Alex’s books and looked around for her younger sister. She didn’t see her anywhere around, but did see the light on in their bathroom. She walked over to the door and tapped lightly on it to see if her sister was inside. When she got no response, she peeked inside. As she did, she saw her sister in the tub, her fingers moving slowly in and out of her pussy.
Alex, not aware that her sister was watching at the door, continued finger fucking herself, increasing the tempo, continuing to ream her pussy. Alex then hit an upswing, and moved her fingers in faster and faster, pushing herself close to orgasm. But as she got closer and closer, she began to glow. Alex saw her arm begin to glow and thought “That must be GC-161 kicking in”. Soon, the continuous finger fucking brought her what she had been waiting for… a crashing orgasm. Wave after wave after wave of pleasure. Her juices streamed out of her pussy and Alex brought a finger up to her mouth and sucked on her own juices.
Annie, having seen this, was immediately turned on and started rubbing her own crotch. She was even more excited when she saw Alex begin to glow. She though “That’s an area I didn’t expect GC-161 to affect. I’ll have to test this further”. She went ahead and made a bold decision and slipped into the bathroom. Annie came up beside Alex and laid a hand on her sister’s shoulder.
“Annie!” Alex said. “Oh my gosh, I didn’t hear you come in. I’m… I’m…”
“It’s ok Alex.” Annie said. “I do it all the time too. You look like you have gotten pretty good at it. Maybe we should team up. I now a little bit about sucking pussy and I could teach you.”
“Gosh Annie, that sounds like fun” Alex said. “Count me in. What do you want me to do?”
“Well first, let’s get you dried off and we can go back into the bedroom” Annie said.
Alex got out of the bath tub and Annie then went and pulled a large towel off a towel rack. Annie took the towel a dried off her sister, paying special attention to her breasts and pussy. She then pulled her sister close and gave her a quick kiss on her lips. Alex returned it and stuck her tongue into Annie’s mouth. Annie stuck her tongue out to meet hers and they wrestled for dominancy of each other’s mouth. Annie gradually broke the kiss and pulled her sister towards their bedroom. Alex giggled and eagerly followed. When they reached Alex’s bed, Alex began to undo her sister’s blouse buttons and soon revealed her sister’s bra. Alex gasped at the size of her sister’s breasts. They were at least twice the size of her own. Alex then moved down to her sister’s cut off shorts and unbuttoned them and pulled them off and threw them to the other side of the room.
Alex moved back to Annie’s waist and slowly pulled down her sister’s panties. Alex threw those over with Annie’s shirt and shorts. Alex moved back to her sister’s midsection and ran her tongue over the top of her sister’s clit. Annie reached back to her back and undid the clasp of her bra. Alex then removed her sister’s bra and threw it away as well. Annie then began to focus on her sister’s breasts. She ran her tongue around and around her sister’s areolas. Alex began to softly moan at the pleasure Annie was providing.
“That’s great Annie” Alex said between breaths “I wish we had done this sooner.”
“So do I” Annie said, still focusing on her sister’s breasts.
Annie softly pushed her sister down onto her bed and moved on down to her sister’s pussy. She shoved her head between her sister’s legs and stuck her tongue out, running it up and down the outside of her sister’s pussy. More moans of pleasure escaped Alex’s mouth, but they were growing louder. Annie slowly moved on to her sister’s clit. She began flicking out her tongue at her sister’s clit, sending waves of pleasure through her sister’s body. Annie then stuck her tongue up inside her sister’s pussy, and ran it around inside of her. Alex grabbed at her sister’s head, running her hands through Annie’s black hair, and slowly started shoving her sister’s head closer to her pussy. Annie continued to swirl her tongue around inside her sister’s sweet sex. Soon Alex began bucking her hips and started groaning. Alex felt a crashing orgasm coming on and shoved Annie’s head harder against her pussy. As the orgasm came on again, so did the glowing. Annie was thrilled. “Let’s see how much she can glow” Annie thought. Annie then brought her hand up and began playing with her sister’s clit and that sent her younger sister off. Alex’s juices began running down Annie’s face, but Annie tried to slurp up all of it that she could. Alex moved up and kissed her sister, hard on the lips.
“Wow, I made a mess of your face” Alex said. “I guess I’ll have to clean it up.” She smiled.
“Feel free to clean away” Annie said.
Alex started licking all over Annie’s face, cleaning her salty/sweet cum off her sister’s face. Alex finished cleaning and then moved down to her sister’s large, heaving breasts. Alex licked at her sister’s nipples, and soon they became fully erect. Alex began to move down to her sister’s snatch, but didn’t know how to proceed.
“What do you want me to do Annie?” Alex asked.
“Just stick your tongue up my cunt lips and swirl it around a little” Annie said. “Then take your hand and play with my clit.”
Alex complied, and stuck her head down between her sister’s legs and began running her tongue inside and out. She then took her hand started playing with her older sister’s clit, eliciting small gasps of pleasure from Annie.
“That’s great Alex” Annie said between gasps. “Now take your one of your fingers and stick it up my ass”.
“You want me to fuck your asshole?” Alex asked in surprise.
“It’ll feel great. Don’t worry about it” Annie replied.
Alex complied and moved her tongue up her sister’s ass. Alex moved her hand up to her sister’s pussy and finger fucked her. Annie soon started moaning under her sister’s dual fucking on ass and pussy. Alex continued licking her sister’s asshole, sometimes pausing to lick around her sister’s beautiful ass. Annie started groaning now, her sister’s advances bringing her closer and closer to orgasm. Soon, Alex’s efforts made all the difference as Annie started to cum under her assault. Alex was careful to try and catch most all of it, savoring the salty/sweet taste.
Alex moved up towards her sister’s face and Annie gave her a smile. Annie leaned up and gave Alex a soft kiss. “Thanks” said Annie “That was the best I have had in a long time”.
“Glad you liked it” Alex giggled, leaning down and kissing Annie again.
The girls hopped of the bed and got back into their clothes. They finished just as they heard someone from downstairs call up “Girls! I’m home”.
“Mom’s back” Annie said.
“Looks like we finished just in time” Alex laughed.
.