Ivy's connections with Selina Kyle mean that she knows an innkeeper not far away who's sympathetic to the cause. The very first time they encounter another person on the way to the hotel, both women instinctively drop their handhold and try to saunter at a normal pace.

They discuss their plan in whispers: Harley will draw the least attention (Ivy's hair is too hard to disguise), so she trades tops with Ivy to appear more conservative.

Of course, this means that Ivy has to stay well hidden, since Harley's skimpy top and bomber jacket fail completely to cover Ivy's more ample assets. It also means that when they've located a quiet alley to change clothes in, Harley is powerless to stop herself from pushing Ivy up against the brick wall and kissing her breathless. Ivy actually has to take Harley's hands and hold her at arm's length or she knows they'd both lose control.

And in this place, in this time, losing control could be deadly.

So Harley pouts as she walks away, cash in hand. And Ivy waits nervously until she sees a blonde come bouncing along, illuminated only by moonlight and its reflection on the softly falling snow, and finally she can breathe again.

She gathers Harley into a tight hug as soon as she reaches the alley and murmurs, "I was worried, cherie."

Harley snuggles against her and nuzzles her neck. "Pssh, Red, I told you I could act legit for 5 minutes!" Her hand wanders to skim the bottom of Ivy's straining bra top, her fingers dancing lightly just underneath the band.

"Apparently, that 5 minutes is up," Ivy says, breathing a little more heavily now. "We need to hurry or I could quite possibly explode, my darling. Did you find a suitable entrance for me to sneak in through?" Harley nods against her chest, her fingers still lightly dancing back and forth.

Ivy once again has to provide enough self-control for both of them. This time, she gently takes Harley's hands, and then spins her around so that Harley's back is pressed against Ivy's front, her hands gently trapped in one of Ivy's hands between their bodies.

Ivy leans down so that her lips slide along Harley's outer ear and whispers urgently, "Take me there now." She lets Harley go with a little push, then trails slightly behind her as Harley leads the way to a mostly hidden side entrance to the hotel.

They hover in each other's orbit as they climb the stairs and walk down the hall, not touching but both throbbing with anticipation and the power of their connection. When they reach their room, Harley stops outside the door and turns to face Ivy. She twirls the room key around her finger, leans in and whispers, "Are you ready for this?"

But she leans in too close, and as she twirls the keys around she accidentally gets them stuck in Ivy's hair. Harley tries to snatch the keys back reflexively, and Ivy hisses in pain.

"Oops! Sorry!" Harley says, trying to stifle the laughter that's threatening to bubble up. But Ivy laughs first, melodic and genuine, and she fishes the key out of her hair as they both laugh uncontrollably. Ivy wipes a tear from her eye and unlocks the door without any further ado. She pushes it open, and gestures for Harley to enter before her.

They're not laughing anymore.

Harley slowly walks into the room, sashaying a little more than usual. Ivy watches her hungrily.

Harley turns to face her, backing into the room now. She holds out her hand. It's all Ivy can do not to lunge for it – instead, she keeps their searing eye contact and slowly approaches Harley, kicking the door shut behind her and locking it without turning around to look. She puts her hand in Harley's outstretched palm, but then continues sliding her fingertips along Harley's wrist, the sensitive inside of her elbow, up around the back of her arm and her shoulder so that she's holding the back of Harley's neck, their bodies inches apart.

As soon as her fingers leave Harley's hand, that hand naturally curves around Ivy's waist.

They stand just like that for a long moment, testing their own resolve, staring into one another's eyes. Ivy's hand is possessive but gentle on the back of Harley's neck. Harley can't keep her fingers still, and she slides them up and down Ivy's back under the bomber jacket.

And then, at the same time, they both break.

Ivy crushes their lips together while Harley pulls their bodies into closer contact, sliding a leg between Ivy's. The kiss is hot, wet, desperate, all the more so when Ivy's lips part and she slides her tongue against Harley's mouth. Harley instantly tilts her head to the side and parts her lips, sucking gently on the tip of Ivy's tongue.

Meanwhile, Harley slides her hands up Ivy's back, right under the bomber jacket, and tugs to slide it down Ivy's shoulders. Ivy has to let go of Harley and throw her hands back so the jacket can slide right off. Harley breaks their kiss, breathless, and brings her hands around to the front of Ivy's shoulders, holding her at arm's length so she can take in the sight before her.

She slides a finger down Ivy's collarbone and trails it down to her cleavage, enjoying how Ivy's chest is barely contained by Harley's tiny bra top. "Green," Harley says in a husky voice. Ivy shakes her head to clear it, confused and aroused. Harley taps that finger on Ivy's chest and Ivy looks down. "Ah," she says, realizing that she's still projecting her artificial skin color. And in an instant, she's back to her beautiful deep green hue.

Harley actually groans as the skin she's touching turns green. She presses a wet kiss to the top of Ivy's breast, and then skims her tongue along Ivy's neck, not wanting to lose contact with that glorious green skin, until she reaches her mouth again.

Their kisses become more and more urgent, bruising their lips as they crush them together, over and over. Harley grabs the back of Ivy's neck now, pulling her mouth down to meet Harley's, while Ivy slips her hands down Harley's sides and cups her ass. Now it's Ivy's turn to groan. "Mon dieu, Harley," she gasps, "I need you."

Harley pulls back for a moment, and her eyes darken with lust. "I'm all yours, Red," she whispers. She takes Ivy by the hand, turns, and leads her to the bed, looking back over her shoulder almost shyly.

When they reach the bed, Harley pauses, for the first time a little unsure about what to do next. Ivy takes the opportunity to slink up behind her, pressing herself against Harley's back, fitting their bodies together tightly in a position she's coming to love. Her arms twine around Harley's waist from behind, and she gradually sneaks her hands upward until her fingers are poised at the top button of Harley's shirt (actually Ivy's shirt that Harley's still wearing).

They're both breathing heavily, and Harley swears she can feel the air thickening with their desire. She leans her head to the side, giving Ivy access to lick a hot stripe up her neck. Harley moans and reaches up and behind Ivy's neck. She turns her head so their mouths can meet in another searing kiss.

As they kiss, Ivy's clever fingers start undoing buttons, tantalizingly slowly. She pops the first one and pulls at the fabric, exposing a bit more of Harley's collarbone, which she strokes softly. She pops the second button and pulls the shirt a little more open.

When she pops the third button, Ivy pulls away from Harley's eager mouth so she can look down. She slowly slides the fabric apart even further, and this time she can see Harley's pert, naked breasts. Ivy gasps involuntarily at the sight. "Please," Harley breathes, still watching Ivy's eyes as they darken.

Ivy drops her mouth to the juncture of Harley's neck and shoulder, gently sucking at the flesh there. Their height difference means that she can look over Harley's shoulder and watch her own green fingers slowly slide inside Harley's shirt. Her touch is tantalizingly soft as first her fingers, then her palms skim over pale breasts and pink nipples.

Harley's so worked up that she swears she could almost come from that first touch alone. Ivy's just ghosting her hands up and down, enjoying the feel of Harley's skin, the heat.

She starts rubbing harder, both of them loving the friction, and then she's using her fingers, rolling Harley's nipples between them as she sucks harder at her neck.

Then Ivy hits some kind of breaking point, and just RIPS the shirt downward, sending the last few buttons flying. She's unbuttoned Harley's shorts a second later. She yanks the shirt down off of Harley's shoulders, kissing a hot trail down from her neck to her shoulder, and then throws the shirt to the ground.

Now Ivy has unfettered access to Harley's sweet little tits. She's panting against the back of Harley's neck, scattering wet kisses there while she works her nipples mercilessly. Harley arches back into her, pressed between Ivy and the bed, loving the position she's in, breathless as Ivy ravages her. She lets out a little whine when suddenly one of Ivy's hands is gone – but then she feels those long green fingers skimming under the waistband of her shorts, and her breath catches as she anticipates where this is going.

Just like on the bridge, Ivy slips her hand down inside the back of Harley's shorts as her other hand continues working at Harley's nipple. She sinks her teeth into Harley's shoulder as her hand slips lower and she feels the warm, smooth skin of Harley's ass, caressing it, marveling at the feel of it.

Then she slowly moves her hand to the cleft between Harley's cheeks, slips questing fingers lower so that once again, she just gets the slightest feel of wetness on her fingertips.

And Harley practically sobs, she's so ready for her.

And now Ivy can't hold back anymore. She pulls her hand back, knocks the shorts to the ground impatiently, bites her own lip hard enough to draw blood at the sight of all that pale, perfect skin. She gently pushes Harley in the center of her back, and Harley takes the hint and crawls up on the bed.

Ivy crawls up right behind her, grinds against her ass for a second, says through gritted teeth, "Lie down."

Harley obeys, lying down on her stomach, still panting, rolling her hips into the bed a little frantically, trying to get some relief.

Ivy moves over her, on all fours, kisses her neck, trails lips and tongue down her spine, plants a wet kiss right at the base of her spine, lets herself caress that sweet ass one more time.

And then she stretches out over Harley and slowly, agonizingly slowly, slides one long finger into her. "Ah…you're so wet for me," she breathes.

Once again, Harley almost comes right then. "Jesus Christ, Red!" she moans. Ivy moves slightly to one side, straddling one of Harley's thighs from behind, burying her face in Harley's neck as she slowly withdraws her finger. Then she slides it back in, just as slowly.

"Please," Harley whimpers.

"Qu'est-ce que tu veux?" Ivy whispers against the back of her neck, her finger still buried inside Harley. The little hairs on the back of Harley's neck stand up, and she groans.

"Take me," Harley whispers. "Just – just fuck me, please." She's still bumping her hips into the bed, still trying to get some friction or she's pretty sure she might die.

And finally, Ivy gives her what she wants. She pulls her finger out slowly, and then suddenly slides it back in. They start to pick up a rhythm, Ivy sliding her finger in and out and Harley pushing her hips back and forth, fucking herself on Ivy's finger. "More," she pants, and Ivy slips another finger in. Harley is surprisingly tight, but she's so wet that she could probably take even more. Ivy doesn't think they'll have time for that, though.

Ivy rubs herself against Harley's thigh as she fucks her. Even fully clothed she's already close to coming, grinding against Harley's thigh in the same rhythm her fingers are pounding inside her. She can feel Harley's wetness growing, hears her breath come faster and faster, feels her hips buck back on Ivy's fingers even more desperately, and now all there is is the rhythm, slipping in and out, in and out, Harley's so close now, Ivy can feel it, and then there's a rush of wetness on her fingers and Harley's whole body shakes, and she's crying out, keening, something that sounds like "fuck, Red," and Ivy can't believe she made her fall apart like that and she rubs her pussy up, then down against the back of Harley's thigh and then she's coming too, falling apart, collapsing on top of Harley's back, her fingers still working gently inside of her.

Ivy can't breathe. She slowly withdraws her fingers (Harley shudders as she pulls them out) and just lies there. Harley's back is covered in a thin sheen of sweat. Her hair is sweaty, messy where it falls against the pillow. She looks like she's just been thoroughly fucked. It's absolutely gorgeous.

Ivy's lying half on top of her, and Harley turns her head to face her. They're both breathing heavily, nostrils flaring. Harley grins at her. Ivy smiles back, feeling proud, feeling free.

They watch each other for a moment, catching their breath. Then they shift so that they're facing each other on the bed. Ivy reaches out and gently pushes a sweat-soaked strand of hair off Harley's forehead. Harley snuggles closer and rubs her nose against Ivy's, a move that's oddly sweet and affectionate.

"Can I ask you something?" Ivy says quietly. Harley nods, the motion making their noses bump together once more.

"This morning, you were – how do I say this – under the thrall?" Harley nods and looks a little regretful.

Ivy continues, "And – maybe it was that woman with the bad teeth, but maybe also somehow your former lover – I don't understand the magic part of it." She pauses, looks into Harley's eyes. "There was this moment. It was before I strangled her with my vines, when he was doing everything in his power to seduce you, and I thought he would win." She strokes along the side of Harley's face. Harley leans into her touch, listening, waiting.

"But you said – 'No.' You said no. I helped to dispel her magic, but I can't stop thinking about that moment." Ivy pauses. "How did you do that? They were controlling your mind, cherie – where did you find the strength to fight?"

Harley doesn't even have to think about it. She gives a little shrug, smiles, and says, "He called you a toxic freak. Said he was going to possess you, take you." Harley smiles and says, more quietly, "They might have been in my mind, but there's only one person who can touch my heart. And she promised never to break it." She blushes and ducks her head down. "That was so cheesy!" she groans.

Ivy puts a gentle finger under Harley's chin, tilts her head up so they're eye to eye again. "Cherie," she says. "My darling." And she kisses her, sweetly, gently.

And it's a promise.