Marinette Dupain-Cheng never thought she would ever get over Adrien but that changed when she had went to Queens, New York after her family had won a free vacation there (luckily her Miraculous 'miraculously' had a built in feature which allowed her translate everything she read, saw and hear into French so she could communicate). She ended up interested in the local costumed street level hero there (as New York was also the home of the worldwide superhero team the Avengers) Spider-Man and met him as Ladybug, thinking he was the holder of a Spider Miraculous.
However she ended up learning his secret identity as a nerdy gifted tech genius her age called Peter Parker and that his powers actually came from a genetically altered spider bite. After learning their identities (she had to admit this was a surprise as despite having teamed up with him on a regular basis, she had no clue who Chat Noir was), they started hanging out but ended up accidentally kissing which led to them being unofficially together.
Right now Marinette and Tikki (since he knew she was Ladybug, she thought she might as well introduced the both of them to eachother) were in Peter's room in his apartment as Peter was showing him his Tony Stark created Spider suit and the original one that he made himself.
"This pattern and design is so awesome!" Marinette awed excitedly inspecting the design of Peter's costume with the Spider logo and the web design along with the web cape attached to it. "If I could design a superhero outfit, this would blow it out of the water!" Marinette told him sounding a little jealous but Peter smiled as he patted her on the back.
"...But this one looked pretty bad, this is the one you made yourself?" Tikki asked around Peter's original suit and was playing about the goggles. Peter agitatedly took the goggles back from her and faced Marinette.
Marinette sheepishly looked between Peter and the new suit her fashion instincts kicking in. Sighing and deciding to be as truthful as she could she said "well... it's no... sorry Peter but it's pretty bad." Marinette told him apologetically and Peter shook his head.
"Yeah I know, I was never that good at sewing or anything, I was always the gadget and science type so when I decided I wanted to make my own superhero suit this was the best I could come up with... good thing Tony Stark came to me to help and made me this new suit so I could be a better more public hero." Peter told her shaking his head and deciding to put his old suit away.
"Still the Web-Shooters and the formula for my webbing were all created by me so at least I got that going for me. I am my own personal Q; at least I was until Tony Stark became a better Q for me." Peter told her and Marinette smiled but didn't quite get the James Bond reference.
"Can't believe you are smart enough to build your own gadgets, the only Gadget I have is my Miraculous but I didn't have anything to do with its creation. Even if I needed gadgets, I don't think I would have heads or tails on where to start building them." Marinette told him sheepishly showing him her Miraculous which Peter had a look.
"Yeah but at least it allows you to turn into your suit in an instant, you won't believe how much easier my life would be if I didn't have to make sure my Aunt May doesn't find my suit somewhere in my room every week. Plus it allows you to 'de-evil' your enemies and I wish I could do that myself..." Peter muttered and Marinette laughed.
"And your suit is pretty cute with all the Ladybug spots." Peter told her and she gave him a look. "Something the wrong Marinette?" Peter asked concerned.
"I say your suit is awesome and the best you could do about mine is that it's cute?" Marinette asked with her arms crossed as Peter sputtered out an apology. Marinette giggled as she told him "I am only playing with you Peter, I don't mind how you feel about my suit but I do hope that you find my own fashion designs I created to be more than 'cute'."
"They will definitely be more beautiful if they are on you..." Peter told her and Marinette muttered about him being a charmer as she drew him in for a kiss. Then Aunt May came through the slightly open the door and just smiled as she gave the two fifteen year olds their privacy.
Luckily for them Aunt May didn't notice the Spider-Man costume on Peter's desk or Tikki who was hiding behind the Avengers figures on Peter's desk.