One day, Barbara and Elysia were making out naked once more as Rayman watched, he asked, "How did your sisterly relationship become so incestuous?"

The naked sisters giggled as Barbara answered, "It was on our 18th birthday..."

Barbara and Elysia blew out some candles on their birthday cake, mom and dad clapped for them becoming legal adults. While they were fully clothed, Barbara and Elysia fed each other handfuls of cake, even licking each other's hands sometimes. When the redhead got cake on her cheeks, Elysia would lick it off. Also, Barbara licked some cake off of the dark twin's cheeks.

Both sisters smiled at each other, Barbara asking, "Did we just feel each other's lips and tongues on our cheeks?"

With a giggle, Elysia replied, "Yes, we did."

"It actually felt...good."

"I think so too."

"Maybe we can also feel our lips on each other's?"

"You want to kiss your own sister?"

"Why wouldn't I? You're beautiful."

"Aw, you're beautiful too. I actually wanna kiss you as well."

Barbara and Elysia slowly pressed their lips in a kiss, it was a soft kiss and it lasted for a few seconds. Pulling away, they smiled at each other, Barbara saying, "Sis, I never realized how cute your face was."

"Hee hee, your face is cute too, Barb."

Soon, they shared a few more kisses before they noticed each other nipples erect from under their tops, which made Barbara ask, "Elysia, do I really turn you on that much?"

"I guess you do."

"Well, you turn me on too. You wanna see my breasts fully exposed?"

The darker sister was a little surprised, "Sis, are you talking about...being naked?"

Smirking, Barbara giggled, "Maybe. I don't just mean topless, I mean completely naked."

"I don't know."

Mom told Elysia, "You and Barbara are beautiful. I see nothing wrong with you two being naked in front of each other."

Barbara giggled, "Nudity would be super fun, don't you think?"

Elysia smiled a little at Barbara, "I always have wanted us to be nude together."

"Then what are you waiting for?"

With mom and Barbara's encouragement, Elysia joined her sister in taking their clothes off. First, Barbara and Elysia unzipped their tops in synchronized movements, then took a moment to look at each other's breasts. Their mother smiled, "Wow. Both of you have equally big boobs and equally small nipples."

Seeing their erect nipples, Barbara smiled at Elysia, "Wow, sis. Your breasts look amazing."

That made Elysia giggle, "Yours too."

Slowly walking towards each other, the twins felt their breasts press together and they shared another kiss on the lips, one that was longer than last time. After taking off their boots and socks, Barbara and Elysia pulled down their pants at the same time, they both smiled from seeing wet spots on each other's underwear as the redhead said, "We're more aroused than we thought."

Once they pulled down their panties, Barbara and Elysia were completely naked except for their winged helmets. The helmet didn't cover any of their skin, so they felt that keeping them on was ok. Both of them grinned at their mother and father, "Mom, dad, my sister and I are naked!"

Mom and dad giggled at how naked Barbara and Elysia were. The sisters looked at each other's hairy vaginas, it seemed Barbara and Elysia never shaved their vaginas in their lives. Barbara and Elysia's father looked at their discarded clothes and noticed wet spots on their pants and undies as he chuckled, "Looks like you two couldn't contain your arousal. How about I put them in the laundry?"

His wife said with a smirk, "Don't forget my clothes, honey."

With that Barbara and Elysia's mother stripped until she was completely nude too. As he put their clothes in the laundry, mom smiled at her naked daughters as she caressed them from head to toe, "Barbara, Elysia, you both are equally beautiful because you both are physically identical. Look at you two, equally soft skin, equally flat tummies and same size navels. Also, your hands, arms and legs are the same length as each other's. The hair on your heads and vaginas are as messy as each other's, your bare bottoms are equally thicc and fleshy while your bare feet are equally dainty."

Barbara smiled at Elysia while looing at their dainty feet, "We have the faces, breasts, tummies, feet, vaginas and butts of a princess."

The dark sister smiled back, "Our whole bodies are like a princess's body."

Dad came back with a camera to begin recording and from his perspective, the naked sisters were facing the camera and Barbara's left hand held Elysia's right. The redhead asked, "Is it filming?"

He answered, "Yes. Action."

She then asked Elysia, "Ready, sis?"

Elysia giggled and blushed, "It's still pretty hard to believe that we're actually naked naked."

"Believe it. As twins, our naked bodies and body parts are very similar, so people will think we are equally beautiful."

Then, Barbara smiled at the camera, "Hello, my twin sister and I are completely nude. We want to show our naked love."

As Barbara blew mom and dad a kiss, Elysia waved and grinned, "Aside from our winged helmets, nothing is covering us at all."

Barbara said, "Enjoy our incestuous romance."

The naked princesses shared a kiss, feeling very brave, bold, empowered and confident from being nude. While hugging and kissing, Barbara and Elysia smiled as their breasts pressed together while they grabbed each other's buttocks and felt their juices dripping down their inner thighs.

As Barbara embraced her sister with her arms around Elysia's waist, she kissing her sister's lips and whispered, "Sis, look at us, two nudist sisters that are so horny for each other, making out naked in front our parents. I love you so much."

Turned on by being hugged and kissed in the nude, Elysia hugged Barbara back with her arms around her shoulders, they moaned from feeling their breasts mush together and their toned stomachs rubbing against each other. Barbara and Elysia loved feeling each other's naked skin, they liked to be silky and smooth everywhere except for their vaginas. They grinded so they could get their messy pubic hairs tangled up as Elysia whispered, "Sis, you're so beautiful."

"You are too."

After a while of hugging and kissing while naked, they pulled away from each other to look in each other's eyes. Barbara put her palms on Elysia's cheeks and give her a soft kiss before saying softly, "I want us to make each other cum."

Barbara tried to lean back, but their pubes were tangled, so they spent almost a minute getting unstuck before Barbara sat on her butt and patted her pussy, beckoning Elysia for feeding time. The darker twin was so hungry and her naked body needed Barbara's cum.

While mom was naked, dad stayed fully dressed while kissing and groping his wife, who masturbated from seeing the lesbian sex ensuing.

As Elysia submissively brought her face to Barbara's vagina, the redhead felt so close to her with Elysia's face in her pussy, sucking her for what their bodies needed. Barbara gently held Elysia's head, petting her green hair and feeding her darker sister her honey-sweet juices, whsipering, "That's my good girl...take my pussy, Elysia...what a good girl, you are..."

An interruption occured when Barbara's beautiful body was trembling with her oncoming orgasm. Elysia sucked her with more need in anticipation of her sister's lovely cum filling her tummy and her mouth pressed into Barbara's pussy harder, pushing her body as Barbara moaned, "Ooooooohhhh...yes, my sweet sister...take all my cum I have for you...good girl..."

From Elysia's point of view, Barbara's messy red bush partially obscured her outer lips that were so large, swollen and hot as they were filling Elysia's mouth. Barbara's orgasm overtook her and she tugged Elysia's hair, "Elysia! Yes, sis!"

Elysia could feel Barbara's pussy pulse hard in her mouth, sending her cum to Elysia, who sucked hungrily and noisily, Barbara had a hot river of cum filling her sister's mouth, it kept coming to Elysia and she gulped it down, her throat taking every bit of Barbara's cum that she could swallow, Elysia could feel it warming her tummy. Barbara petted Elysia and praised her, speaking softly to her sister, "You're such a good girl. Do you want some more, sis?"

With her face still buried in Barbara's hairy vagina, Elysia whimpered for more, licking her more, Barbara's outer lips kept burning with need for Elysia as Barbara lovingly wrapped her legs around her sister's back and gently held her head as Elysia opened her mouth wide, needing more of her cum for her naked body. Barbara moaned, "Oh yes, my Elysia...my sweet good girl..."

Meanwhile, Barbara and Elysia's dad had his cock sticking out of his shirt, mom had one hand fingering herself while the other fondled her breasts, dad kept filming the naked princesses making love.

Whimpering more with her hands under Barbara's thighs, holding Barbara's buttocks, Elysia kept her sister's body secure as Barbara spasmed hard and gave Elysia more cum from her hot, quivering pussy. There was so much of Barbara's cum for Elysia's tummy as the redhead screamed, "Elysia! Yes, my sweet naked sister! Take it all!"

Take it all she did, Barbara tasted so good in Elysia's mouth. Mouthful after mouthful, Elysia sucking eagerly and holding Barbara's bottom to keep her convulsing body in place, the darker twin sucked Barbara until her stomach was full and so, so warm.

Now, it was Elysia's turn and she was now lying on her back with her legs wrapped around Barbara's neck and Elysia holding her messy red hair. Barbara kissed her inner thighs and licked them, then lapped at her pussy, not really caring that she was making all of Elysia's muscles tense with each of her licks.

As the naked redhead slid her tongue way inside Elysia, wiggling it and licking the back of her pussy, Barbara loved the way Elysia screamed and grabbed onto her, "Barbara, my hot nudist lover, pleeeeeeease suck your nude sister..."

Barbara smiled and gave Elysia's pussy long licks, lapping at the honey oozing so beautifully from her quivering pussy. Her body trembled hard and Elysia grabbed Barbara's hair, urging her on, "Oh fuck...oh fuck...Barb..."

When Barbara slid her tongue in a little and forced some of Elysia's juices and honey from her, rubbing her lips in it with her tongue still inside her, Elysia grabbed her knees and pulled them back more with little squeals coming from her mouth. Then, Barbara gave Elysia's outer lips a hard suck, letting her juices fill her mouth, Elysia screamed and fucked at her sister's face, the darker sister's pussy demanding to be fucked hard from the inside out...

With Barbara's hands on Elysia's inner thighs and her knees tucked back, Barbara spread her sister's legs wider and rammed her tongue inside, Elysia's eager pussy contracted, then relaxed, then tightened again, swallowing Barbara's tongue.

While Elysia screamed unintelligibly with intense pleasure and pulled hard on the redhead's hair, Barbara mercilessly fucked all of her tongue into her sister with long strokes against the back of her pussy.

Usually, Barbara's mouth slapped against Elysia with each hard fuck of her tongue, every one of Elysia's muscles was tight and her entire body was a building earthquake.

Screams were getting much louder and much higher in pitch as Elysia's intense orgasm took her, Barbara used her tongue to drive her sister out of her mind, cum was soon flowing heavily into Barbara's mouth, forcing more from Elysia's pussy with her strong, thrusting tongue.

Her orgasm passed, but Elysia kept her legs wrapped around Barbara's neck and held onto her hair, squeezing Barbara's tongue inside her pussy, wanting to keep it inside her. Barbara let Elysia keep her legs around her while she lapped at the back of Elysia's vagina with hard licks, she shuddered hard and her wet pussy pulsed with a heavy flow of her sweet juices to Barbara's mouth, she swallowed what she could with her tongue, the rest getting all over Barbara's cheeks and chin.

Elysia's body jumped suddenly, Barbara grabbed her sister's thighs from around her, pushed her knees back and and spread them wide. Barbara's body had complete control over her and her tongue nailed Elysia as Barbara sucked her sister's pussy in her mouth and rode her as Elysia cried out, "Barbara! FUCK!"

The orgasm hit hard and it lasted a full two minutes. Barbara's mouth kept sucking, her tongue fucking in and out of Elysia, her quivering pussy feeding Barbara's tummy to be full of her sweet, hot cum. Elysia's screams turned to whimpers and she relaxed onto the ground. At the same time, mom and dad came too as the father said, "Man, that was hot."

Once they had recovered, they stood up and embraced, kissing and hugging like naked lesbians. Their father said them, "That was gold."

Mom concurred, "It sure was."

Barbara and Elysia happily embraced mom, who grabbed both of their bare bottoms at once as dad hugged mom from behind, pinching and slapping mom's butt to make her giggle.

After the flashback, Barbara smiled at Rayman, "...and that's why my sister and I love being naked and engaging in incest together."

Elysia giggled, "Just like you, our dad also had a fascination with CMNF."