Steven

"Just call me Steven Quartz Cutie Pie Demayo Diamond “Know it all” Universe!" Steven Quartz Universe is one of Bowser Jr's best friends. They first meet on the exoplanet Kepler 22b and teamed up, despite their differences, to stop Bowser and save their friends, creating the team they established called the Worlds Colliders. He is the son of Greg Universe and Rose Quartz, being the only half gem half-human hybrid known.

Appearance
Steven has fair skin, curly dark brown hair, dark brown eyebrows, and full black irises which can sometimes have stars as pupils when he gets excited or optimistic. He still keeps his blue jeans and salmon-pink sandals, and still has his black Russian coloured shirt with a yellow star in the centre, and he also wears a pink varsity jacket with white trims. He is slightly chubby, hence his much cleaner and healthier lifestyle.

Personality
Steven is a very optimistic, friendly, caring, and arrogant teenager that's appreciated by all, even villains he encountered and redeemed. He is also a very musical person, which he inherited from his dad. Steven enjoyed playing the ukulele as a kid but upgraded to a guitar. He is also a great singer. No matter the situation, Steven will always go out of his way to support his loved ones, even if it means putting his life on the line and will avoid resorting to violence if possible. He would instead make a compromise and choose to reason than fight back.

Steven also has shown to have strange responses to stress or overwhelming situations, such as when things don't go his way or when someone or something is putting too much pressure on him. These outbursts, however, are not similar to his pink outbursts. Previous mood swings would get triggered by agitated and respond violently verbally or physically. Yet, nowadays, these mood swings lead to him laughing maniacally or hysterically. He may be breathing faster or hyperventilating and making strange faces or gestures, even without going pink at all. If he ever needs to calm down, you should probably pass him an airbag. He can even control his pink powers a lot better and isn't afraid of accidentally letting his emotional distress and anguish take control of his mental state.

However, Steven can still pink but not like how he used to. He would go pink if he uses a lot of force on something and does not always link to anxiety, emotional grief or stress. It could also happen when he's surprised, embarrassed, flirty, scared, or by getting defensive but this does not always happen.

Bowser. Jr
Junior and Steven share an unbreakable bond, despite their visual appearances and distinctive personalities. They have shown to a great duo and can work together quite well, and eventually, they managed to save the multiverse together. Since Steven is older than Junior and more experienced, he's always there by Junior's side and tries to be a good role model as Junior is still a middle schooler. Junior tries to impress Steven, sometimes trying to show off which links to his personality quite well.

They are both very competitive towards each other. Sometimes, the duo would strive to be the best at a specific subject and formulate a game out of it to be the best at it.

Spinel
Spinel acts like an older sister to Steven, even though her behaviour is much more playful and childish. They often playfight a lot together with Spinel usually starting it and wins them all the time. These playfights do not bother Steven though, as he seems to be cool with it. With Spinel mobility and agility and Steven's defensive mechanisms and general charm, playfights are also fun. Spinel is also always willing to help Steven with anything to try and return the favour for how he helped her.

This time, he is more comfortable around Spinel and enjoys her company, especially with their sibling-like relationship. Spinel is also quite present when she tries to calm Steven down from his outbursts.

Garnet
Garnet acts like a lenient and kind mother, always encouraging him and setting a good example. It's shown that Steven respects her as he always listens whenever she speaks. Garnet is usually open to letting Steven attempt things that Pearl may not, indicating that she has more trust in him than Pearl. Despite her stoic and somewhat distant nature, the two share an occasionally close and emotional relationship.

Peridot
Steven and Peridot share a really strong bond, similar to a sibling-like bond like he has with Spinel or Amethyst.