Scorpio

Scorpio the Scorpion is a Celestial Spirit that is one of the 12 Golden Zodiac Keys. His key is currently owned by Angel. He is also Aquarius's boyfriend to which they have a happy relationship. His weapon appears to be a large strange gun.

Oracion Seis arc
Angel summons Scorpio in her fight with Lucy Heartfilia, upon arriving he is greeted Aquarius who appears very happy to see him. Scorpio then politely introduces himself to Lucy since she is Aquarius's master and instead of attacking her, he leaves with Aquarius to go on a date.