Rebekah

Emily slowly turned around to see Rebekah glaring at her with her hands on her hips. She was wearing a over sized sleep shirt and panties.

"uhhhh..." Emily quietly tried to utter an excuse. Her older sister had always intimidated her.

"What the fuck do you think you're doing snooping around Mom's purse in the middle of the night!?" Rebekah softly accused her, doing her best not to wake their sleeping parents.

Emily saw no way out of her unfortunate situation . It seemed she was now **** to tell Rebekah about the necklace.

"Listen, I can explain everything. Just keep quiet!" Emily quietly spouted back at her sister, while putting the necklace safely around her neck.

Rebekah noticed the necklace, raising an eyebrow. "You're gonna explain away stealing Mom's jewelry in the middle of the night? Right." she mocked.

Emily just glared at her sister, while slowly moving back into her own room. Rebekah silently followed her, shutting the door behind her. Now that the two sisters were alone in Emily's room, Rebekah spoke first, breaking the awkward silence.

"Talk." she commanded.

"Look, I found this necklace yesterday at the beach. I was just getting it back." Emily partially explained, hoping it would suffice.

"Yeah, in the middle of the night? I don't buy it."

"I couldn't sleep and wanted it back!" Emily pressed onward.

"Ok, so why did Mom have it in the first place?" Rebekah wasn't letting her sister off the hook.

"She brought it up to the room after I found it. I promise that's the truth!"

Rebekah looked at his sister with disbelief. "So if I wake up Mom, she'll tell me the same thing?"

"Don't wake up Mom!" Emily nearly yelled. Both girls looked at the door, listening for any movement on the other side. After a few moments it was clear they were still the only ones awake.

Rebekah looked back at her sister smirking. She had won. "So why can't Mom just confirm your unlikely story?"

Emily was out of options. She glanced down at the green necklace around her neck in defeat. As she looked at her emerald necklace, a great idea came into her mind.

*I could just merge with Rebekah!* Emily ecstatically thought to herself. The more she considered the idea, the better idea it seemed. *I was going to steal Mom's curves, Why not take Rebekah's instead? She definitely deserves it, after being such a bitch!*

As Emily thought about merging, the necklace responded, lighting up her dark bedroom with a bright green glow. Rebekah momentarily looked at the necklace in confusion, but her eyes soon turned green under the necklace's influence. Her face was now filled with lust.

"I never noticed how tight your little body is, sis." The green eyed Rebekah cooed.

Emily blushed, knowing it was the more the necklace talking then Rebekah. She hazily remembered Mina falling under it's influence earlier with her mother.

Rebekah stepped forward, playfully pushing Emily on to the bed behind her. Rebekah stood in front of her sister and removed her sleep shirt, giving Emily a great view. Her shapely tanned breasts bounced free. Rebekah smirked as Emily starred at them.

"I always loved your envious looks, ya know." Rebekah admitted.

*Oh am I gonna hold that against her later.* Emily thought as she stared at her sisters boobs.

Rebekah continued undressing, slowly pulling her panties down her legs and tossing them to the side. Emily moved her gaze down to Rebekah's groin. Her sister was neatly shaven, only a small tuft of dark pubic hair above her pussy remained.

Knowing what was coming Emily started to undress as well. She pulled her shirt over her head and unclasped her bra, revealing her flat chest. Her nipples were stiff with anticipation. As Emily started to unbutton her jeans, Rebekah bent down to assist her. Her sister used both hands to pull Emily's pants down and off her, revealing light blue panties underneath. Emily let out a little whimper as her sister lightly rubbed her pussy lips through her underwear.

Chuckling at Emily's reaction, Rebekah pulled her sister's panties down as well, revealing Emily's sopping wet cunt. Lightly trimmed blond pubic hair surrounded Emily's pussy. Rebekah could see her juices glistening off of it.

"Enjoying this?" Rebekah teased.

Emily simply looked up at her beautiful sister and nodded her head. She never in a 1000 years thought she was going to have a sexual experience with her sister, let alone merge with her. Emily prepared herself for what was about to happen. Rebekah then plunged 2 fingers into her, gently moving back and forth once inside, massaging Emily's wet inner walls. Emily let out a loud moan, and quickly covered her mouth to muffle herself. She hoped to god her parents or Scott hadn't heard her. Rebekah softly laughed at her sister's reaction to her fingers.

After a few moments, Rebekah swiftly withdrew herself from Emily's pussy, leaving her aching to be filled once more. Emily watched as her sister moved her soaked fingers to her mouth and sucked the juices from them.

*I never knew Rebekah was so....Kinky* Emily thought to herself, as Rebekah removed her fingers from her mouth with an audible pop.

Rebekah stepped up onto the bed and ran her wet fingers up Emily's toned stomach. She put her hands to Emily's flat breasts and playfully began rubbing her nipples. Emily let out a muffled moan once again as her nipples sent a static shock throughout her entire body. Rebekah then lowered herself onto Emily, pressing her breasts against Emily's chest. The necklace was lost in Rebekah's cleavage, causing her tanned skin to reflect the green light onto the two sisters.

Emily felt Rebekah move her hand back down below and enter her once again, this time forcing 3 fingers inside. Emily squirmed and did her best not to scream from the pleasure. Rebekah noticed her attempts to stay quiet and locked lips with her sister, further muffling the sex filled moans.

As their tongues intertwined and and bodies pressed together, the necklace began working it's magic. Unable to see anything due Rebekah's **** on her mouth , Emily closed her eyes as she felt her own sister sink into herself. Slowly they merged, Rebekah's long feminine legs sank into Emily's athletic ones. Rebekah removed her fingers and instead used her newly free hand as leverage to press her own vaginal mound into her sisters, causing both girls to grunt in ecstasy as their clits combined into one. The girl's backs arched into each other from the pleasure, as Rebekah's fat breasts became Emily's. The two girls lips melded together into one flesh as Rebekah's head merged downward on to her sister's. Emily started to hear Rebekah's own lust filled mental moans inside her head, desperately wanting to be filled by something.

Emily could feel her body shifting and changing as the last of her sister sank into her. She felt her chest grow and bounce from Rebekah's added mass. With a final gasp, Emily eye's sprung open, eager to get a look at her new self.

She quickly looked downward at her shapely boobs. The emerald necklace sat safely between her newly acquired mounds of flesh. Emily lifted her hands up, lovingly massaging her new breasts. She could feel her perky nipples send waves of pleasure throughout her entire body as she ran her fingers over them.

*These are way more sensitive then mine.* She thought to herself.

Emily jumped up off of the bed and ran toward her dresser. She could feel her boobs bounce as she did, something she definitely wasn't used to.

Emily smiled as she looked at herself. She noticed her now dirty blond hair had grown and extended down to her shoulders. Her skin was now darker from Rebekah's tan and she was several inches taller. Luckily Emily had retained her muscle mass, and Rebekah's slutty body had only added onto her own. Emily turned around, admiring her new hips and butt. She playfully reached behind herself and grabbed her fat ass cheeks and squeezed. She began bouncing her ass, watching herself in awe.

*Why can't I fucking control anything, you damn pervert?!* Rebekah mentally shouted at her sister.

Emily's face turned bright red in embarrassment. She didn't expect her sister to able to directly communicate with her, then again she had no idea how the necklace really worked. Maybe Emily and her Mother were more in sync?

*Well?!* Rebekah spouted once again. She was growing impatient.

*It's because I had the necklace on when we merged, stupid.* Emily mentally clapped back at her sister. *You should know that. Mom and I could read each others memories when we merged.*

*You did this to mom too!?* Rebekah responded in disbelief.

Emily let out an audible laugh, her changed voice caught her by surprise. *Oh, please. She was the one who merged with me.*

It was obvious Rebekah's and Emily's merge was not as complete as before when Emily and her Mother were together. Emily presumed it was because Rebekah, without the necklace's magical influence, would never be caught dead sharing a body and mind with her own sister. It was probably a good thing, Emily didn't want Rebekah knowing about her and Daniel.

Rebekah paused to think over her situation. She was trapped inside her sister, who stole her body and merged it with her own.

Emily used her few moments of mental silence to continue to explore her new self. She moved her hands down to her groin, and lightly stroked her and Rebekah's combined womanhood. Much to her enjoyment, Emily had kept her own trimmed blond pubes. They, along with her inner thighs were still coated from her sexual juices from before. Emily's cunt ached because she never got to finish what Rebekah started.

Emily let out another whimper as she slowly pushed her fingers inside herself. She heard Rebekah mentally moan in the back of her mind.

*Who's the pervert now?* Emily taunted her sister.

It seems Rebekah could still feel everything Emily could, despite their dysfunction. Emily used this information to her advantage and pushed her fingers deeper, not only for her own sexual satisfaction but her sister's too.

Emily plunged deeper, nearly getting her entire fist inside herself. Her new legs nearly buckled from the intense pleasure.

*I guess you're a little looser then me?* Emily again mocked her sister. Rebekah stayed quiet, but Emily knew she was fuming.

Not wanting to fall over herself, Emily moved back up on the bed. It was still damp from their previous fun.

Emily laid on her back, while spreading her long legs. She again plunged her fist back into herself this time fitting the entire thing inside. Despite Emily's teasing, She could feel her cunt stretch from the massive intrusion. Emily moaned as she reached her free hand up to her left breast and started aggressively squeezing it similarly to how Daniel had earlier. She could hear Rebekah screaming in ecstasy as Emily's fist roughly plunged in and out of their shared pussy. It didn't take but a minute or two until Emily's thick hips bucked from her first orgasm in her newly merged body.

She removed her soaking wet fist and laid back breathing heavily from the experience.

*Not so bad, ey?* Emily mentally asked her sister as both of them enjoyed the afterglow.

*Shut up.* Rebekah quipped back.