Kerri sat up. "If I'm going to have sex I'm wearing far too many clothes. What do you think I should do?"
Sarah smirked. "I think you should take them off and let me see that pretty pussy."
Kerri clucked her tongue. "I call it my cunt."
"Isn't 'cunt' a naughty word?" Sarah asked.
"I'm a naughty girl... I mean, come on, look at what I've got myself into here." Karen said matter-of-factly. She had been naughty enough tonight for the rest of her life, she thought. Walking upstairs she'd seen Sarah's bedroom door slightly open, and snuck up only to see her sister masturbating to a lesbian porn magazine. When Sarah had called out her older sister's name in the throes of self-induced passion, it had freaked Karen out, and things had quickly become weirder from there. Now Sarah was in her bed, a bed they used to jump on as kids, on which the two young women were about to do something incredibly profane.
She stood up and pulled off her blouse. Karen was only a 34B and rarely bothered to wear a bra, but she had a pink floral print one on today. Airports were usually cold, and cold equaled hard nipples, which meant untoward stares from strangers.
"Do the panties match?" Sarah asked, lying on the bed, legs hanging off. She adjusted her robe so that Karen could get a good look at her lithe nineteen-year-old body.
"Of course they do. Since when does the carpet not match the drapes, sis?"
"Since you dyed your hair blonde in tenth grade." Sarah quipped. "Or I should say tried. And it came out more orange than blonde. You looked like a carrot in drag."
Karen furrowed her brow. "Smooth line, that just makes me sooo wet."
Sarah feigned a pout. "I sowwy, Kerri." She stood up and walked over to hug her sister, but her hands quickly roamed lower than her waist. Instead, she grabbed Karen's tight cheeks with both hands and squeezed, pressing their hips together. "I can't believe how nice you look. God, I've always been jealous of your little ass."
"Wait until I get all my clothes off." Karen said. Sarah sat down and circled her nipples with her fingers while Karen tried to make a big deal out of disrobing. Despite her mediocre college volleyball career, Karen had always been a bit of a klutz when it came to dancing, and she knew that a striptease for Sarah would only result in her crashing to the floor. Instead, she decided to try a lapdance. She sat down in Sarah's lap, stuck her breasts in her face, and brought her hands up to her waist.
"Take it off." she commanded. Sarah nuzzled Karen's breasts and reached around to unclasp Karen's bra.
"Ooh! No tan lines. I didn't know they had nude beaches in Tampa..." she asked. She took one of Karen's breasts in her hand, cupped it gently, and squeezed. Karen bit her lip as Sarah tentatively took her sister's nipple into her mouth.
"Ooh, Shi-shi... mmm... suck it. That's good. Play with it with your tongue."
Sarah circled Karen's now-erect nipple a few times with her tongue, sucking it into her mouth and letting go. She moved back and forth between them as Karen gyrated on her lap, running her hands up and down the girl's arms and shoulders. It had been a long time since even Karen's on-again, off-again boyfriend had paid any attention to her tits. Sarah's tongue and warm mouth felt wonderful against her nipples. Her juices were really flowing now.
She stood up, pulled off her shorts and panties, and teasingly turned a 360 for her sister. She also pulled the scrunchie from her hair, allowing her long brunette locks to fall free.
"See anything you like?" she asked.
"I see plenty I like." Sarah said. "Lay down here next to me."
Sarah slid over and Karen laid beside her on the bed. They touched tentatively, carefully, like two new young lovers who had never met but were determined that tonight would be the night. Karen took Sarah in her arms and kissed her, softly at first, nuzzling her cheeks and her neck, then more intensely, reveling in her soft skin and musky smell. She knew what Sarah smelled like, but this was a different smell, a grown-up smell - and she liked it. Her attention turned further south, to Sarah's breasts and those pert, pink nipples. Just to return the favor from a few minutes ago.
"Mmm... god... If you don't eat my pussy soon I'm going to explode, Kerri." Sarah gasped. Karen was having a fun enough time playing with Sarah's tits, but she obliged the younger girl and traced her way down her torso to the warm, inviting spot between her thighs, planting soft kisses on her smooth belly along the way. She had no trouble parting Sarah's legs, and saw up close that very pretty shaved pussy that her sister had been frantically rubbing just a few minutes before.
"Mmm... yes, Kerri, yes, please lick me."
Karen leaned down and inhaled her sister's scent deeply. She licked her fingers and made a V-shape, and rubbed up and down the outside of Sarah's labia. Her sister bucked her hips, raising them to meet Karen's fingers. Karen rubbed the outside of Sarah's pussy a few times before taking a finger from her other hand and slipping it inside.
Sarah moaned audibly. "Oh, fuck, Kerri."
"Hush. If you wake up Mom I don't even..." Kerri put two fingers up to Sarah's mouth. They were slick with her juices, and rather than accept the criticism, Sarah took Karen's fingers into her mouth and hungrily sucked her own pussy juices off. That was something she sure didn't learn from me, Karen thought. I'm gonna have to hack her laptop and see what she's been getting into.
"I said, lick me." she demanded, playfully biting her sister's fingers.
Karen let out a small grunt. "If you insist."
Sarah could feel Karen's warm breath on her pussy, and her finger inside felt way better than anything she had done to herself during her solo playtime. Karen lowered her head and licked Sarah's pussy, with long, flat strokes, cupping her tongue as she reached her clit. Sarah ground her pussy into Karen's face and placed her hands on her sister's head.
