After class that day Marinette and Adrien went to the park together. 'Adrien?' Marinette said. 'Yes?' he answered. 'Well now we know about each others double life, we can easily discuss things about Hawkmoth without having to meet every time.' Marinette said. 'Good point, but maybe we shouldn't do that somewhere where everyone can hear us.' Adrien whispered. 'Yeah you're right.' Marinette answered. 'So what do you want to do today?' 'How about we play some games, in our other mode. I'm dying to find out who's faster when it comes to getting somewhere.' Adrien said with a smirk on his face. 'We shouldn't use that for fun. But actually, I would like to know as well.' Marinette said smirking. 'I bet I'll win.' Adrien said. 'In your dreams!'
'What will I get when I win?' Adrien asked. 'A kiss.' Marinette said. 'So what will I get when I win?'
'That's a secret.' Adrien answered mysteriously. 'Just admit that you don't know anything and hope that when you win you get away with it. Well you better start thinking because even if you win, I still want to know what it is that I missed.'
'Alright.'
Adrien took Marinette's hand and they ran to a place where they could transform. 'Plagg claws out!'
'Tikki spots on!'
A few seconds later Marinette and Adrien were gone. Ladybug and Chat Noir went to a rooftop. 'The first one to reach the Eiffel tower wins!' Ladybug yelled. 'I'll count to three. 1, 2, 3, go!'
Ladybug threw her yo-yo and moved from building to building. Chat Noir used his stick to go from building to building. 'Admit it, you'll never win!' Ladybug yelled. 'Yeah Ladybug, go on, say it!' Chat Noir yelled back. Ladybug stuck out her tongue. She wanted to win but she was also very curious about Chat Noir's part of the deal. Chat Noir on the other hand had still no idea what his part of the deal was going to be.

The Eiffel tower came closer and Ladybug felt like she was going to win when someone screamed "Ladybug!". She looked into the direction the sound came from and noticed that it was just Chloe trying to get her attention. 'Ugh.' she said when she continued on full speed. 'Don't let her distract you M'Lady.' Chat Noir said when he noticed that Chloe had just given him an advantage. His real plan was to let Ladybug win because he wanted her to and because he finally had an idea of what he wanted to do for her. 'Wait for me!' Ladybug yelled. Chat Noir, playing the dumb one, slowed down. 'Thank you.' Ladybug said when she passed him. 'Hey wait that's not fair!' Chat Noir yelled. 'Yes it is.'
The finish was a close one, but Ladybug won. 'Now who is the fastest one, kitty?' she said. 'So what did I win?'
'I'm going to officially introduce you to my father.' Chat Noir said. 'Well that's not what I expected.' Ladybug answered. 'Oh and we're going to Alya to tell her that Ladybug and Chat Noir are officially dating.' Chat Noir said with a smirk. 'Alright. She's going insane when she hears it.'
'It's worth it.' Chat Noir said. 'Let's go!' Ladybug yelled when she headed to Alya's house. When they arrived at Alya's house they entered it. Immediately Alya started fangirling. 'Hey Alya.' Ladybug said. 'We have something to tell you.'
'Make sure you record it.' Chat Noir followed. 'Of course.' Alya said when she took her phone in her hand. She started recording. 'Chat Noir and I have something to tell you.' Ladybug started. 'We're engaged.' Chat Noir said. Alya's mouth fell wide open and Ladybug looked at Chat Noir with a deadly look in her eyes. 'No.' she said. 'But... We are dating.'
Chat Noir took Ladybug's hands and then kissed her, in front of the camera. Ladybug kissed him back. It was a short kiss because they weren't alone. 'I guess we both got our part of the deal then.' Ladybug said.  Alya, still recording everything, asked a few questions like "how long have you been dating?", "do you really know each other's identities?" and "What is your ship name?". That last one was easy of course, Lady Noir. Ladybug and Chat Noir said bye to Alya and left. When they were on the rooftops they spoke a while. 'Now it's official.' Ladybug said. 'No way back.'
'At least we partly skipped the gossip phase by doing this.' Chat Noir said. 'Wait that was your reason!?'
'No of course not M'Lady.' Chat Noir said. 'Good.' Ladybug answered. 'I'm going home Chat.'
Ladybug gave Chat Noir a hug and then left, leaving a happy cat behind.