Gemini

Gemini, "The Twins", or Gemi and Mini are a Celestial Spirit that is one of the 12 Golden Zodiac Keys. Their key is currently owned by Lucy Heartfilia. They possess the ability to mimic the appearances and abilities of others.

Appearance
Gemini are two individual twins of a single Celestial Spirit. They are both small alien-like creatures with sky-blue colored bodies and two antennas. They have beady eyes. They both wear shorts. Gemi has a "^" shape for a mouth, while Mini has an "v" for a mouth. Gemi has a sash running from his left shoulder to the right side of his waist, and Mini has a sash running from her right shoulder to the left side of her waist. Mini wears orange shorts while Gemi wears black.

Personality
Gemi and Mini are very joyful Spirits. When waiting for orders, they dance and make funny and cute poses. They don't seem to be very shy, as they had no problem with showing their breasts to their enemies (they were transformed into Lucy at the time). Also, they have a kind-soft heart because when Lucy was unable to use her Magic after the battle with Angel, they came to her and were willing to help Lucy.

Oración Seis arc
Gemini first appears after the guild alliance leaves the Blue Pegasus' base. While posing as Ichiya, they reveal themselves after stabbing Jura in private before leaving with Angel. They are later summoned by Angel during the Oración Seis's skirmish with the Light Team and attack Lucy Heartfilia and Gray Fullbuster in the confusion.

They later pose as Gray, and incapacitate Natsu by tricking him onto a raft, bringing about his vehicular motion sickness. As Gemini is about to deal the finishing blow, Lucy interferes by summoning Sagittarius. They froze Happy when he tried to help Natsu. Gemini attempts to attack Lucy, but their attack is blocked by Hibiki. After retrieving information on Hibiki from Gray's memories, they assume Lucy's form and use Hibiki's weakness of women by exposing Lucy's breasts, much to the real Lucy's dismay.

Gemini, with Lucy's abilities, commands Sagittarius to attack Hibiki. Lucy forces Sagittarius's gate to close, only for Gemini to re-summon Sagittarius. When Lucy tries to force him back again, she is unable to since Gemini called him and only they can force close the gate. Angel appears and challenges Lucy to a duel.

Gemini is later summoned wielding Caelum, seduces and defeats Taurus and attacks Lucy after she exhausts her Magic. As she is about to strike the finishing blow, Gemini recalls Lucy's memories and can not bring themselves to attack her after seeing Lucy's love for her Celestial Spirits. In her frustration, Angel banishes them back to the Spirit World.

Later, in Nirvana having arrived at the third Lacrima, Lucy reveals to Happy that she has no Magic power left, but that she will not give up fighting until the very end. However, Gemini summons themselves in order to help her destroy the Lacrima. Taking Lucy's form again, they summon Taurus and have him smash the Lacrima simultaneously with Natsu, Gray, Ichiya, Wendy, and Erza. Afterwards, Angel is arrested, breaking her contracts with her spirits. Gemini, along with Scorpio and Aries, seek out Lucy and form contracts with her instead.

Edolas arc
Gemini plays a large part in Lucy's plan to get information from King Faust. Since interrogating him wouldn't work, she hoped that Gemini would be able to transform into him and steal his thoughts. However, the group gets captured before the plan is put into action.

In the anime, when both Lucy Heartfilia and Lucy Ashley are in towels, Lucy uses Gemini to show three Lucys to Lucy Ashley. Natsu thinks of a quiz party game and Happy does a "Who is the real thing?" game. However, the three Lucys weren't happy at Natsu at this suggestion. So far, Gemini has so far worn the same clothes whenever it changes into Lucy.

X791 arc
Gemini celebrate Lucy and her friend's return from Tenrou Island when Virgo brings them to the Celestial Spirit World. During the celebration, Carla and Happy run into a mob of Nikora. Gemini explain Nikora's are a very common type of Spirit in the Celestial Spirit World. After the celebration, Gemini see Lucy and her friends off with the rest of Lucy's Celestial Spirits.

During Lucy's fight wither Flare Corona, Lucy calls on Gemini, and the twins appear without Lucy using their key, attacking Flare and cutting her hair at same time. Gemini transforms into Lucy, (only dressed with a towel, what prompts the crowd and Vijeeter to fall in love with the view) and together they cast Urano Metria, to finish off Flare, though their attack is erased by Obra.

Magic and Abilities
Copy Magic: The Gemini twins have the ability to transform flawlessly into anyone that they have contact with. With this, Gemini is well suited for purposes like infiltration and information gathering/retrieval. . Once transformed, they will gain the transformed person's knowledge, Magic and their recent thoughts (if not while they are thinking about them in real time). When they recall memories, they talk in a bullet style listing; the amount of information that they can access is, of course, limited to the knowledge that the genuine counterpart is actually aware of, and nothing more beyond that. Gemini, however, can only hold the transformation for five minutes, and they must touch the person in order to transform. Gemini can only retain the capability to transform up to two people, and any more additional transformation requires them to erase the older one of the transformed forms. Gemini can also transform themselves into a near target without touching, but this restrains the appearance of the clone to the appearance that it had last time they have contact.


 * Mimicking Ichiya: As Ichiya, Gemini can use Ichiya's Perfume Magic. They also said that he's thinking only about perverted things.
 * Mimicking Lucy: As Lucy, Gemini uses a whip as a weapon. They can even summon other Spirits, and control Spirits summoned by the original Lucy. Gemini can also distract male enemies with her attractive body. During the Grand Magic Games, Lucy combines her Magic power with Gemini transformed into her and together they cast Urano Metria. However, the spell was cancelled by another Mage before its effects could be seen.
 * Mimicking Gray: As Gray, Gemini can use Ice-Make Magic with the same level of Gray's original Ice-Make Magic.

Levitation: Gemi and Mini can both walk on the ground and float in the air. This ability also allows Gemini to make strong and fast aerial attacks with an aura of Magical Power around them.

Immortality: As a Celestial Spirit, Gemi and Mini cannot die, unless they are forced to stay in the Human World somehow.

Video Games
Gemini appears as a support character in DS Game Fairy Tail Gekitotsu! Kardia Daiseidou.

Major Battles

 * Light Team vs. Oración Seis (owner)
 * Lucy Heartfilia vs. Angel (owner)
 * Lucy Heartfilia (owner) vs. Flare Corona

Trivia

 * Prior to their proper introduction in Chapter 133, they have already appeared on the cover of the chapter release twice, Chapter 98 and Chapter 122.
 * Interestingly, Gemini is the only Celestial Spirit shown to be able to summon other spirits.
 * In Chapter 165, when Lucy makes her contracts, Gemi and Mini have their sashes running from the same shoulder to their hips, but it is corrected in the next panel below.

Quotes

 * (To Angel about Lucy) "Her beautiful voice... Resounds... I can't do it. Lucy.. loves them from her heart. She loves us Spirits!"
 * (To Lucy) "Sometimes that feeling gives you power."