"Seriously, why am I Robin? I'd make a totally awesome Batman."

"You are so not Batman."

The two continued to bicker as they made their way down. Luna grinned wildly, clearly taking enjoyment out of teasing him. Her fingers traced the darkened walls of the stairway, more out of habit than inability to see. Adrien, however, had both hands on the walls for guidance. Without Chat's cat-like eyes, he really couldn't navigate in the dark. Thankfully, though, Luna's fingers soon found the light switch. She hit it, filling the basement with bright fluorescent light. Adrien had to blink a couple times before the room came into focus.

She wasn't kidding. This was the fucking Bat Cave.

Well, minus the cave. And with a lot more artistic flare.

For the most part, the room was gray. Metal pillars were spaced out to support the house above while still allowing for enough space to hold all the treasures the Thief of Spades had gathered over the years. Jewels, paintings, sculptures and so much more lined the walls. There was even a motorcycle parked in a far off corner near what had to be a ramp to the surface. In the center of the room sat a work table littered with gadgets and the like. A massive computer monitor sat on the farthest wall with a large black desk underneath it. Adrien gawked at it for a bit, barely registering the black streak swooping by him with a cry of "ooooo, shiiiiiinnnnyyyyyy".

"Whoa," Adrien whispered, enticing a laugh from the girl ahead of him.

"I take it you're impressed," Luna said.

"Maybe a little," he admitted as he followed her in. "Has this always been here?"

"I wanna say the house is about a century and a half old? Like I said, I inherited the place from my great granddad. At least half the stuff down here is from his spin as the Thief of Spades. Computer's new, though."

"Okay, this is unbelievably cool." He studied a jeweled crown through the glass of its case. "So, is this what you plan to do with the painting? Add it to the Spades legacy?"

Luna slumped into the computer chair and turned on her monitor. "Not sure, actually. I was going to sell it."

Adrien raised his brow. "Was?"

"My buyer backed out last night. Apparently, I made too much of a spectacle for his liking."

The model moved to the work bench. "Well, if he didn't want to draw attention, he probably shouldn't have hired an infamous thief," he said as he picked up a pair of goggles and raised them to his face.

"My thoughts exactly. Either way, the Forest of Emerald Leaves is now considered too hot a piece to move. Not even the Black Market will touch it just yet."

"You must be so broken up about that," Adrien said with a smirk.

Luna rolled her eyes at him."Kitten, if it was about the money, I would've called the whole thing off the moment I lost my buyer. I just wanted to test my skills against the two of you."

The boy moved to rest on the back of her chair. "Well, if that's the case, why not just give the painting back?"

It was Luna's turn to raise a brow. "You're asking a thief to give back what she stole?"

"You have no use for it, right?" Adrien asked with a shrug. "If you can't sell it, it's just gonna end up collecting dust down here. Wouldn't it be better to have it back in the Louvre where all of Paris can marvel at its beauty?"

"How long were you practicing that line?"

"Not important right now."

Luna giggled a bit. "I don't know, kitten. I mean, I'm not exactly getting anything out of this."

"What's it gonna take?"

The thief thought for a moment. It wasn't that he didn't have a point; she really had no use for the painting. And it didn't really catch her fancy enough to keep it with the rest of the treasure trove. So, what could she get out of this? All of a sudden, an idea came to mind. Mischief lit up her eyes as she smiled up at him.

"Alright, kitten. How about we make a bet?"

Adrien frowned. "What kind of bet?"

"Well, it's more of a dare." Luna licked her lips. "I dare you to steal something."

"No," he said, flatly.

"Oh, come on. It's nothing major. I'm not asking you to turn into a criminal."

"Well, then what do you want me to steal?"

"A kiss."

He blinked. "Seriously?"

She gave him a smug grin, keeping her silence. Adrien narrowed his gaze.

"From who?"

"A girl of my choosing. You won't get a name unless you agree." He grew quiet for a moment. Luna spun to face him. "What's wrong, Agreste? You're not a prude are you?"

He pouted, folding his arms. "Hey, what do you want from me? I haven't even kissed a girl before!"

"Ouch! Didn't realize I was that forgettable."

A blush colored Adrien's face at the memory, contrasting with the bruise on his nose. "I... uh..." He looked away from her. "T-that doesn't count...you kissed me, remember?"

"Same difference," Luna said with a shrug. "Look, you'll have a week to do it. Not too much pressure, and if you do, I'll give the painting back. Hell, I'll even do the dare."

"You will?" he asked, frowning.

"Pick somebody, and I will steal a kiss from them within the week."

"Oh, no way! That would be too easy for you!"

She folded her hands over her stomach. "Then, how do you want to play this?"

Adrien thought it over. He leaned forward, putting his hands on the armrests of her chair. His gaze met her playful one.

"I can pick anyone?" he asked. "Guy or girl?"

"Does not matter to me, kitten."

"Then you have to get them to kiss you. You can't initiate it in any way. And if you can't, then you have to give the painting back."

The thief smirked. "Does that mean you agree?"

"Hold on, now," he said, holding up a finger. "Ground rules first. One: we can only pick someone from school. Two: no teachers. That would just be weird. Three: no telling your target about the bet."

"Four," Luna interjected. "No asking for a kiss. It has to be earned. And if you fail, you have to wear a dress to school for an entire day."

"That is cruel and unusual punishment."

"But that skirt looked so good on you."

Adrien huffed, drumming his fingers on the armrest. "Alright, fine. What happens if we get our kisses then?"

Luna had to think about that for a moment. If the painting was her penalty for losing, then Adrien would need a different prize for winning. "If one of us does manage to get our kiss, then we can make one command of the other and they have to do it. No ifs, ands, or buts. Do we have a deal?"

'This is such a bad idea,' Adrien thought to himself. Despite that, he straightened and offered her his hand. "Dea-"

The sound of shattering glass caught both of their attentions. They looked in time to see the jeweled crown from before rolling across the floor and clatter to a stop. It soon lifted to show Plagg hidden beneath it. The kwami gave a sheepish smile.

"Plagg," Adrien said, testily. He folded his arms in a glare.

"I didn't do it on purpose!"

Luna hid her chuckle behind a hand. Adrien sighed. "I'm sorry about him. Let me clean it up."

"It's fine, pretty boy. I'd rather get back to business." She held out her hand to him. He took it, shaking his head.

"Who is it?"

"Marinette Dupain-Cheng."

"Wait, what?!"

"You heard me," Luna said, cocking her brow. "You're not gonna back out are you?"

"Luna, she's awkward enough around me as it is! I do this, and she'll probably never talk to me again!"

She held up her hands. "Hey, if you want to forfeit, that's fine by me. I'm pretty sure I have a dress you can squeeze into for Monday."

Adrien glared at her. "Y'know, I wasn't going to do this, but hey, why not?" He pointed a finger at her. "Chloe Bourgeois."

Luna's smile vanished. "No."

"You're free to forfeit if you want~" he taunted.

"That is low, and you know it."

"Then hand over the painting if you're not up to the challenge."

He grinned like the cat that got the canary, and God, did it irk her. She stood up, placing her hands on her hips. Fire sparked in their eyes, and an unspoken promise hung between them. There would be no mercy.

Suddenly, Luna's expression turned sly. "I wonder if Alya's posted on the Ladyblog, yet."

Adrien frowned as she turned to her computer. "Huh? What does that have to do with-"

"There it is~" she sang. She clicked on the latest video. "Let's fast forward to my favorite part."

Confusion colored his face as he watched the screen. It was soon replaced with shock, however, as the tail end of Ladybug and Spades' fight played out. Luna glanced at him, pleased with her handiwork. She patted his shoulder.

"I'll give you a minute."

The thief moved to clean up the broken glass, leaving the blond teen gaping in silence.