When I woke up, the sorority house felt empty — or almost empty. There was a text on my phone, from the house head: “TAKE CARE OF LUNA THIS WKND.”

I got up with a put-upon sigh. Luna was the newest member of our chapter, and she was already proving to be a handful. I’d been a sister for two years. Anybody who thinks being in a sorority is about pillow fights and debutante balls doesn’t understand how academically demanding it is.

Our chapter house was a neat three-story building. The place was usually crammed with members doubling up in the bedrooms and tripping over one another in the kitchen and common room. Frankly, with just about everyone taking off for the weekend, I was looking forward to a little breathing space for once.

But when I got dressed and went down to the kitchen, there was Luna with music blaring, dancing around in nothing but panties. Her high tits bounced and her eyes were closed.

I admit I indulged a long look at her beautiful body, but then I reached to turn off her tunes. Her eyes snapped open, and she rather comically threw an arm over her breasts.

“Oh, oh, I thought everyone was gone!” she exclaimed with reddening cheeks.

“Everyone but us,” I said, trying to sound stern. After all, I was supposed to “take care” of our sisterling that weekend. “Don’t you have studying to do?”

Mortified, she ran off. I had my own studies to see to. They never seemed to end, but I was dedicated to my school career. The sorority was a great help. It provided an opportunity for connections and an education in how to navigate high-level social situations. Nobody handed you anything, you had to earn it. But I was determined to get everything out of it that I could.

Still, it was a Saturday, and I did goof off a little. Luna, on the other hand, threw herself at the books like the rest of her life was going to be decided with her next quiz. I was impressed by her resolve, which was different from the rather flighty demeanor she’d presented since coming into our house.

I went out for dinner. When I came back, all the downstairs lights were off. It looked like the kitchen hadn’t been used. Curious, I went upstairs and found Luna still poring over her textbooks. She was, of course, now fully dressed, but she looked haggard. Her eyelids were drooping, and she was chewing listlessly on the tip of a pencil. She wasn’t even aware I was looking at her from her open bedroom door.

She was knuckling down, all right. Maybe getting caught with her tits out that morning had given her a needed shock. If she didn’t keep up her grades, she would be out of the sorority.

But I felt a surge of empathy. I snuck off and drew a hot bath in one of our huge tubs, lighting candles and pouring in lavender bath salts. With no one else around, she could indulge in a long, restorative soak. I decided she’d earned it.

I startled her again when I called her name from her doorway. This time, she smiled crookedly at me and swore, “I’ve been studying all day, Sharon.”

I put out my hand and said, “You did fine. But it’s no good if you break your brain doing it. Come along, girl.”

She got up and took my hand, and I led her to the bathroom. She was shocked to see what I’d set up for her.

“This… this is so nice of you,” she said.

For a second, I thought she might cry. Hugging her, I said, “Just get in that water before it gets cold, OK?”

She started undressing while I still held her. Awkwardly, I stepped back as she peeled off her top. Before I could leave the room, she stepped out of her jeans. The steam from the tub curled around her bare skin.

She looked shyly at me and said softly, “You, um, don’t have to go. It’s a big tub.”

My breath caught in my throat. The latent desire I’d been nursing for Luna since she’d shown up suddenly surged in me. My gaze roamed her body. She wasn’t hiding her breasts this time, and her nipples stood stiffly, silently enticing me. Her pussy was shaved, her legs shapely. She stood slightly to the side, and I saw the seductive curve of her ass.

I said, “If you don’t mind my company.”

She met my eyes squarely and admitted, “I’ve been dreaming about your company since I got here. You’re my best friend at this sorority.”

Maybe that was true. I did pay her a lot of attention, but I had thought that was because she acted out so much. But maybe there was the basis for a real bond between us. She seemed to think so.

She came to me and very gently started to undress me. She gave me every chance to back down if I was unsure. But as she removed my clothes, I got surer and surer that I wanted this. I wanted her.

In the fragrant heat we stood naked together, then stepped into the water. I sat back in the tub, and Luna lay against me. My hardened nipples felt nice grazing her back. We softly splashed foamy water over each other. I held her in my arms and wrapped my legs loosely around her. She stroked my thighs, sending shivers through me.

I lathered up my hands and ran them over her flat belly. She giggled. I moved upward and cupped her breasts, tentatively at first. But when she sighed luxuriantly, I boldly caressed her, loving the feel of her stiff nips under my palms.

She squirmed back against me, the giggles gone. I squeezed her soapy tits harder, and she moaned, the sound echoing in the candlelit space. She opened her legs wider and mewled her desire to me. Well, I couldn’t leave my sorority sister in such a needy state.

Feeling my own breath catch, I boldly reached down to slide my fingertips over her pussy’s puffy outer lips. She shuddered hard and cried out, “Yeah! Oh, I’ve wanted this so bad!”

With that, I slipped two fingers into her, hooking them, so I could stroke her G-spot. Her hips rolled, and water splashed up the sides of the tub. I could finally admit to myself that I had secretly fantasized about such an encounter, even fingering my pussy under my bedcovers late at night while my roommate slept.

I worked my fingers in and out of Luna’s snatch, savoring the slick texture of her interior. I pulled out and focused on her clitoris, which was a sweet-ripened bud, waiting eagerly for my touch. I didn’t disappoint it.

With fine strokes, I caressed her nub. She pressed her body back against me, turning her face and reaching back for my head. As she squealed through a fierce climax, she planted her lips atop mine. We kissed deeply as her orgasm trembled through her body. Her tongue was blunt and wriggled urgently against mine. But as her climactic pleasure ebbed, the kiss softened, and our tongues tangled leisurely, our lips smearing together.

Luna sat up and turned around. Her pretty face glowed, her eyes piercing me.

“Sit up on the edge of the tub,” she said.

I levered myself up to perch there. She moved in, gliding through the water like some beautiful, bewitching sea nymph. I felt her breath on my pussy, then her tongue went to work.

I groaned as she licked me up and down, and my ass quivered on the porcelain ledge. Her tongue sought out my clit and flicked it expertly. Her perfect butt gleamed with moisture as it bobbed above the sloshing water. I had to put out a hand to steady myself against the tile wall. Ecstasy was rapidly rising in me. I jammed myself against her mouth, and a cry rose in my throat. She was relentless. I couldn’t have held back my orgasm if I tried, and I sure as hell didn’t try.

I writhed and moaned, and nearly slid off the tub’s edge as my passion overwhelmed me. I heard Luna eagerly licking up my overflowing juices. When my last climactic shiver faded, I felt like I was floating along with the steam still rising from the water. I was dazed, happy and still buzzing with desire.

“Maybe we should try fucking on dry land,” Luna said.

We helped each other out of the tub and dried each other off before walking on air to the bedroom I shared with a fellow sister. But now it was empty, just waiting for Luna and me.

Together we fell onto my bed, and the feel of her nude body full-length against mine was a thrill. We kissed again, tongues probing deep. I could taste my pussy on her lips. She was on top of me. I groped the sweet mounds of her ass, and she wriggled excitedly.

Breaking our kiss, I panted, “Get up on my face. Straddle me.”

I expected her to climb right up onto me. But she swung off first, then sat reversed atop my waiting mouth. I held her hips and brought my lips to her nether lips. She smelled of lavender, but she tasted like the womanly nectar I so wanted to feast on.

As I wriggled my tongue between her folds, she gently rocked. I heard her sighing. She reached down to play with my tits, which added to my pleasure. Her fingers plucked my aroused nipples as I once again lavished attention on her clit. Her flavor made my own juices flow again. She was quivering wildly, and suddenly, her knees were digging into my sides. As she came, her honey oozed from her pussy, and I happily lapped up her liquid.

Since I had her in that position, a wicked thought occurred to me. I shifted a little, then put my tongue tip to her asshole. She squealed again sharply. I was about to stop, but she insisted, “Yes! Lick my butthole! Fuck, that’s good!”

Eventually, she was overcome with pleasure once more and fell forward, which put her conveniently in the position for us to 69. We did so, our bodies fitting together like they’d been designed for the act. Pleasure swamped me, and my hips bucked as my lover ate my pussy once again.

It was a lovely weekend we had together in that empty house. I even made sure Luna continued to study in between our sapphic shenanigans.

When our sorority sisters returned, the chapter house head came to me. She looked me up and down, then said with a smirk, “I see you took care of our fledgling. Good job!”

I realized then that everyone else had cleared out so Luna and I could have some time together. Now I love my sorority sisters even more!