A/N: So I swore off Piper porn. Not! Also, Piper's pants confuse me. Are they pants with a skirt-y kind of design or is it a skirt with leggings? :/ I'm also convinced that I've turned Lark into a lesbian Edward Cullen in this story, and that doesn't bother me as much as it should.

Anyway, lol!closet. Extended metaphors are fun.

OoOoOo

It was so sudden she didn't have time to prepare. Piper was walking down the hallway, and in the interval of milliseconds between the time she lifted her foot and just before it fell down, Lark had popped up in front of her. The ghost had a finger pressed against her pale pink lips but soon abandoned that to yank Piper close to her, arms around the navigator's waist, smiling thinly.

Poof, they were gone again.

Just like that.

They landed in darkness, Piper's shin banging against something hard and unyielding. She gave a yelp, trying to shuffle away only to be met by the solid wall of the utility closet. She stepped forward again, hands out in front of her, groping in the cramped space for the door handle and kept on finding Lark's body instead- or brooms, or a towel hanging from a rack on the ceiling. "Lark, what on Atmos-"

Something warm bumped into her from behind, two hands on her shoulders, at first seeming to guide her until Piper realized she was just being pushed against the wall again- face first. "Wh- Lmm- mmph!"

Shh, shh, shh, shh.

A hand clasped over her mouth, a mouth next to her ear, repeating the same shushing noise physically as with her mind. Lark put her other arm around Piper's shoulders, restraining the girl from moving too much.

They'll hear us.

And then Piper noticed the footfalls just outside the doorway, growing closer, passing, and then fading away. She could feel Lark's mouth against the back of her neck, grinning widely, and wriggled for freedom at the unwelcome sensation. Cut it out! she snapped.

Piper, if we're going to do this... The hand over her mouth loosened, and fingers trailed over Piper's lips as Lark slowly began to kiss along Piper's neck. It provoked an uncertain noise, somewhere on the precipice of soft delight and trepidation, a sigh and a pout. ...you need to be quiet.

Lark felt a sense of sharp, dark glee by choosing that moment- when she said quiet- to send a starburst of pleasure running throughout Piper's system, causing the dark-skinned girl to whimper deep in her throat. Her lips parted, kissed the edge of the fingertip pressed against her mouth. Only... Are you crazy? She stiffened again, eyes on the door, realizing anyone could walk in on them. Even if Lark was invisible it would be hard to explain what she was doing in here.

Hey, hey. Relax. The door is locked.

But they- An even stronger wave of pleasure hit her. Her head snapped forward against the wall again, her teeth finding her lower lip, sliding her body against Lark's, ignoring the clothes as the other girl pressed close against her, hot breath on the base of her neck. Piper retaliated almost on instinct, trying to outmatch Lark by pushing the same sensation back on her. In a moment of complete connection she even felt it the way Lark did- and gooseflesh erupted all over her skin, and her nipples went erect so fast it was almost painful.

Lark let out a low, satisfied chuckle, pulling at the fastens to Piper's pants. "Now that's more like it," she said, hardly able to push out enough air to say the words, so excited she forgot to breathe. Piper tried to turn around only to have Lark firmly press her against the wall again, biting her bare shoulder just hard enough to be uncomfortable then licking it, one rough swipe of the tongue to take away the sting. The tip of her tongue kept on, traveling up the side of her neck to end with a final nip on Piper's earlobe.

Her hands were gentle, but they dragged without hesitation straight back to Piper's pants again, massaging wide circles through the fabric. Low, rippling- everything about her mind was focused yet drifting, hazy but sharp. A mumble in her ear, heavy. "Mmm, just... stay still... while I get you off, OK?"

Another hand went up her shirt, brushing over her breasts before moving back down to wrap around her stomach, holding the other girl tightly. But just as soon as she started she had to stop, when Piper tried to reach behind her back. "Ah, ah, ah, ah," she said quickly, struggling with Piper, holding her by her wrists, shuffling awkwardly in the cramped space. She doubled the mental pressure, seeing she wasn't going to get far with just her hands alone, and Piper's struggles grew half-hearted and eventually ceased and shifted into squirming, writhing motions of pleasure. "Atmos, you're persistent," Lark said. "What did I tell you about moving? Do I have to elaborate on what that means?"

I'm not asking you to elaborate. Piper twisted to look at Lark over her shoulder, and even though it was pitch black that didn't stop Lark from being able to see the way one golden eye glittered with something dangerously close to anger. You're just not letting me do anything. She didn't like being told what to do- and she didn't like not being in control- but what Lark was doing was harmless, if infuriating, and Piper couldn't be sure if using Sky Fu to break free wouldn't be an overreaction. In response to all this quiet fuming Lark blew a raspberry against Piper's cheek, surprising a quick shriek of laughter out of the other girl.

Piper composed herself, mortified. Stop that!

Oh, you know you love it. And here... one hand guided Piper's down past the waistband of her pants and underwear, fingering her gently. "Now you're doing something," she said, smirking when Piper held her hand, moving it around the way she wanted with a contented sigh. They moved together in almost silence, Piper trying to keep her breathing under control and Lark forgoing breathing altogether. Something cold touched Piper's shoulder and she jumped before realizing it was Lark's hand- Lark's hand holding the key to the utility closet, slowly warming up again from Piper's body heat. Unaware that she was still tense until she finally relax, Piper began to enjoy herself, now that she was assured there would be no interruptions. But still, in the cramped, sweltering-from-the-body-heat space, knowing that the door was literally right there and this was about as public a place to be doing this sort of thing as anyplace else, Piper came quicker than she ever had- and harder, too. Her knees almost gave underneath her. Lark had to catch her and hold her steady, only to then flip her around- oh god, finally- and Piper grabbed her by the front of her shirt, pulling the other girl towards her to viciously suck and chew on her lips.

Whoa, angry.

There was a loud clatter as somebody accidentally flipped over one of the buckets- probably Piper, her hands free now to reverse their positions and push Lark so that the poltergeist's back was to the wall. Somehow, her shirt was halfway over her head, her bra undone. We are never doing this again, do you hear me?

It was hard for Lark to imagine following an order like that, especially seeing the way Piper had completely went over the deep edge the moment she was free. Dark hands took no care being gentle, pulling and demanding, and Lark had to stop her, laughing softly, saying, "Piper- Piper, wait- wait a second. Please?"

That word was not often heard between the two. Piper found the time to touch the crystal around her neck, adding just enough illumination to the scene to see Lark grinning wolfishly at her.

Piper was instantly suspicious. What?

I didn't lock the door.

There was a snap- Lark popped out of Piper's hands to appear right next to the door, letting the lock click shut.

"OK," she said. "Now. Where were we?"