I liked how Lopoddity did Cosmos tail to make it actually look like scorpion tail so i incorporated that. And how could i resist making her fluffy instead of scaly?

Discord and Cosmos had a sloid relationship before she went crazy. they had so much in common. Discord found her passion for chaos and destruction so admirable. They spent what felt like forever together, causing all sorts of mischief until it was torn apart. Cosmos had gained a real thirst for power. her magic was causing ponies harm instead shaking them up a bit. Cosmos had become a real threat, something that discord didn't want. he never went out of his way to harm other. He would only do what seem to be pranks. this put cosmos and Discord on a huge disagreement. Cosmos wanted something Discord did not and so they were at odds.

Discord and Cosmos were intimate during their time together. They really did have a deep love for each other. See, there is only 3 three ponies that Discord has ever really had feelings for. That being Celestia, Cosmos and Fluttershy. His relation never really went anywhere with Celestia because in her youth, she used to always shoot him down. Discord never really thought of Fluttershy of anything more than a friend until they were YEARS into their relationship. their entanglement was accidental.

Okay, so discord had a lot of kids. seven kids in total. Even though they may not have ben intentional, he loves them with all of his heart. Although being a dad was quite taxing. When Discord had told Fluttershy about Cosmos, she was initially shocked. Here was discord with five kids he says are his. AT this time Fluttershy had recently had her kids, so an additional fiver were shocking. even though they had a lot of kids, they made it work just fine.

See, when Cosmos was sent to her imprisonment she had along time to think about what was gong on. So when she had her kids she was able to send them to Equestria since they were so small. they barrier keeping her their would not apply to her kids. they only one Cosmos knew who could look after her kids would be discord. She believed that they would maybe become lords of chaos as well.

Discord sometimes wonders what would happen is she came back(again). he truly did doubt that Cosmos would change for the better and that made his sad. Cosmos was someone he still cared about. Even if she was evil.

This is their relationship headcannon. Tis ties into their separate headcanonon's which will come soon.