You and Viperion were training together because you had just received a Miraculous and he offered to train with you. However, you know each other's secret identities, as you also know each other in real life and are practically best friends. That's also one of the reasons you have a Miraculous: Luka put in a good word with Ladybug, she met you, and gave you one. (Choose one or make up your own)

While training, you heard a bang, and suddenly a supervillain appeared in the distance. Ladybug and Chat Noir were already on their way. You and Viperion exchanged a quick glance and then joined the fray.

The battle lasted a while, but Ladybug's plan was to split into pairs and observe the situation. You and Viperion discussed the situation briefly and then suddenly said the same thing.

You grinned at each other, said the next thing, and it was the same thing again.

"Great minds think alike, eh?" He says and you both laugh a little, then you look at each other and just smile.

Before you both move closer and suddenly kiss.

After the kiss, you look at each other for a moment before both scratching your heads.

"Uhmm... That was a bit unexpected..." he says, and you can only nod.