How did Vriska and Meenah end up being a small thing

Well it started as them trying to collectively start an army to defeat LE, and then they formed a pirate armada to find the weapon to defeat him. They spent several sweeps together doing this and once it all fell apart and it was just them left, they started to fall in gay with each other, got tattoos, and rolled down a hill together before having some sloppy makeouts