Xelthia's amber gaze flitted over the contents of a pair of phials, the clink of meeting glass echoning about the twin's chambers as she mixed the viscous substances within.

Looking up from her latest read, Ezria observed her sister hard at work with another one of her concotions which she had been preparing for a while now. She slipped the tassle of a bookmark between the pages of the weighty tome leaned forward, elbows on its tattered, leather cover. She adjusted herself and wrapped her silken bathrobe tighter around herself.

“So,” Ezria smirked, cradling her chin in her hands. "when do you suppose you'll be done with this mysterious new batch of yours?"
She feigned annoyance with a playful smirk."This 'surprise' of yours is trying my patience."

"Oh hush." Xelthia quipped "I'm just about done."
The violet sibling plucked a thin, teardrop-shaped phial from her collection splayed out over the floor like a small forest of glass and golden filigrees. "I just need to introduce some essence of Ebonwood to complete the scent."
She popped the small cork and raised it over the marble bowl nestled in her lap, letting only but a couple of drops fall into the viscous mixture below.
"It's a fairly complex impish recipie I learned from Miss Ignis. You simply cannot rush these things, my love."

Xelthia slowly stirred the mixture using her pestle and mortar. The combination of the two oils produced a few bubbles, the bowl gently heating. Ezria was enthralled by what she saw; a deep purple swirl dancing around the bowl like different colored inks meeting one-another.

She rose from her seat, strutting over to her sibling, her fingertips gently tracing her lover's collarbone as she stood behind her.

"Go and disrobe and hop into the pool, dear." Xelthia smirked. She didn't look at Ezria directly, but she knew her sister was more than eager to begin.

Ezria obliged and made her way toward the edge of the pool shrouded in barely transluscent drapes. Xelthia observed her lover untie her robe, letting it fall from her naked figure. The crimson sister gave her sister one last smirk before disappearing behind the curtain, standing ready by a warm pool bathed in the pink light of stained glass.

Satisfied her concoction was suitably mixed she lifted herself up from her stool and followed suit, brushing aside the curtain and kneeling down by the poolside to submerge the bowl into the water.

Swirling her mortar around to remove the oil, she witnessed the reaction take place. Sweet smelling layer of bubbles expanded over the surface of the water. She rolled up the sleeve of her evening robes and curiously glided her hand through the hot water.

“Oooh, it tingles already." she grinned, "I think we're on to a winner.”

She shook her hand free of water and foam and rose to her hooves, sliding behind her sister. She traced her fingers around her crimson shoulders, gliding her palms down to cup the pair of soft bosoms. She leaned back into her sisters touch, craning her neck to one side as she felt her sister's lips flutter against her neck.

“Ignis knows what she likes. I'll hand it to her: she has very fine tastes..." Ezria purred.

Ezria parted and stepped into the pool. She disappeared halfway into the waters and promptly submerged herself. She rose from the water with a sudden churning of bubbles and spray. Her entire body was coated in a pearlescent sheen, the oil embracing her as if a second skin, making the water roll off her in serpentine, quick flowing strands. She gave a soft, relieved groan of relaxation.

The concoction intermingling with the hot water made her legs quiver and every bt of her skin tingle.

“By the stars!" Ezria uttered. She stumbled with words, unable to form any coherent description of the sensation she felt. "That really is... oh... my..."

Her mood changed as suddenly as she resurfaced from the water. "Get your hide in here! Aren't you going to enjoy the fruits of your labour with me?"

She abruptly turned to her sister who seemed lost in the display before her, but Ezria knew what she was thinking. She returned the knowing look with a sly smirk from over her shoulder as her claws raked over her body, leaving grooves in the thin film of oil coating her body. She knew Xelthia found it hard to resist the emerald bedroom eyes.

(Short story by JulianOkkeuron. Have questions to ask the twins themselves or anyone else from their world? Ask here!)
http://julianokkeuron.tumblr.com/post/101677937658/how-to-ask-a-question