All was quiet as the blanket of night fell over the Agreste mansion. Nothing was moving apart from the dark silhouettes of two heroes sneaking in through the open window.

'Another successful patrol, m'lady,' said Mister Bug. 'Not an akuma in sight.'

Lady Noire shook her long plait over her shoulders.

'Let's hope it stays that way, Bugaboy, so we can get some peace and quiet.'

'As well as some quality time alone together,' he agreed.

The pair had been dating for a few months following the reveal of their identities, and it had taken this long to persuade Tom, Sabine, and Gabriel to finally let them have a sleepover. They'd had to endure some very embarrassing talks from their respective parents, as well as promise that they would behave themselves and that Marinette would be staying in the guest room. Since Gabriel was out at one of his fashion events, the pair had decided to go on patrol wearing each other's Miraculous, so that they could get the hang of each other's powers should the need ever arise again.

'Have I ever told you how meownificent you look in my suit?' he said.

'I'm the one who should be making the cat puns tonight, Mister Bug,' she laughed. 'And yes. Several times.'

'Sorry. Force of habit. There just aren't enough puns about ladybugs.'

'You can spot them if you look closely enough,' she replied.

He sighed dreamily at her.

'We are so meant for each other, m'lady.' He stepped forward and took hold of her hands as an idea popped into his head. A wicked grin spread across his face. If there was one thing Ladybug always teased him about, it was his purring. Whenever she was in his black-cladded embrace, the tell-tale rumble would burst from his chest. It was a disadvantage of being a cat. He couldn't help it. And every time, his partner would laugh and make fun of him, and it would ruin whatever romantic moment they were enjoying. But now…now that she was the one wearing the cat ring…

Luckily, he rarely had any problem getting his girlfriend to kiss him. He edged closer and began to wind his arms around her waist, hesitating only slightly so that she could object if she wanted to. She smiled, and her own arms found their way to his shoulders, which he took as a good sign. He was just bringing his lips down towards hers when she said:

'Um, Adrien, if we're going to make out, shouldn't we let Tikki and Plagg go? They'd probably rather go and eat something and get their energy back than have to watch us.'

'Oh, this won't take a minute, m'lady,' he said cunningly. 'I just want to try something, and we need the Miraculous for it.'

'Um, OK, what is it?'

'You'll see. It's a surprise.'

He leaned in and kissed her lovingly. She reached up on her tiptoes and kissed back happily, but no purring came yet. Mister Bug squeezed his eyes more tightly shut in concentration. He was going to have to get more creative. They pulled apart.

'Was that it? Because that was lovely, but I don't get what the surprise was meant to be?'

'That wasn't it.' He thought about when he was the one in the catsuit. What would make him purr? Then he thought – maybe if he treated her more like a real cat?

'It's this,' he decided, and swept one arm behind her shoulders and the other under her knees, lifting her up bridal-style. He carried her over to the sofa and seated himself with her head resting on his chest, being careful not to sit on her hair. She blinked her green cat-like eyes curiously up at him.

'Uh, Adrien, what's going…'

He cut her off with another kiss. This time, he deepened the kiss and tightened his hold on her. Her own arms wrapped around him, clawed hands pressing lightly into the sides of his waist. He now had his sweet kitty exactly where he wanted her. He raised his hand to her face, smoothed back her fringe and then scratched her behind the ear. A few moments, and then:

'Purrrr!'

Her emerald eyes flew open in shock and met his matching green ones. He was grinning triumphantly.

'Gotcha.'

After staring at him for a few moments in horror, Lady Noire leapt up out of his arms.

'Uggghhh! You – you tricked me!'

'Sure did.' Mister Bug threw back his head and laughed. She facepalmed.

'I can't believe I fell for that.'

'Me neither.'

'I'm not swapping Miraculous with you again, you bad kitty.'

'You're the kitty. As you've just demonstrated, m'lady.'

'Claws in,' she said moodily. Plagg emerged from the ring, cackling.

'Adrien, you naughty boy! I didn't think you had it in you,' he said. He flew over and high-fived his owner.

'That's it, no Camembert for you tonight, Plagg,' said Marinette.

'Hey, I'm his owner! And it's my house,' Mister Bug objected.

'And I'm the guardian,' Marinette replied firmly.

'And does a good guardian leave kwamis starving and exhausted?' Plagg asked.

'Ugh, fine. You can eat some other type of cheese. I'm sure you have loads. Now give me back my earrings.'

'Spots off,' said Mister Bug. Tikki flew out of the earrings and Adrien gave them back to Marinette in exchange for the ring.

'Good to have you back, Tikki.' Marinette narrowed her eyes at her kwami. 'Don't tell me you're laughing too?'

Tikki shrugged.

'Well, you do always tease Adrien for the purring, Marinette. So, you can't blame him for wanting to get you back.'

'Yeah, okay, fine. I deserved it.' She went and flopped backwards onto Adrien's bed. Adrien came and lay next to her.

'Something tells me this evening is going to be purrfect, m'lady,' he teased.

'You're insufferable. I am not kissing you again.'

'I don't know about that. You'll find I can be very purrsuasive.'

'Uggghhhhh!' She rolled over onto her other side to face away from him. 'Remind me why I'm dating you.'

'Because of my awesome purrsonality?'

Marinette glanced over to Plagg with a grimace.

'How many more of these does he have?'

'You don't even want to know,' Plagg replied as he shoved some Brie into his mouth.

She sighed in defeat.

'Fine. You got me, Adrien. I won't tease you about the purring again.'

'Glad to hear it, m'lady. So…wanna play a video game?'

'Okay. Prepare to get your butt kicked, Agreste.'

'We'll see about that, Dupain-Cheng!'

As they ran over to the TV and grabbed the game controllers, Tikki and Plagg rolled their eyes fondly at the couple. Despite their arguments, it was nice to see their owners together at last.