Upside: Bon vivants; in touch with enchanted child; curious; playful; always new. Downside: Overwhelm and constant chaos; manipulation; duplicity; instability.
Gemini and Pisces are attracted to each other like moths to a flame, and there's a lot of initial excitement. Both are absorbers, Gemini of ideas and Pisces of emotional impressions, and they've got a lot to talk about. Pisces will inspired by the Gemini joie de vivre, and follow their lead into stimulating activities and places.
The built-in pitfalls here have to do with the sensitivity of Pisces, and the Twins' need for total freedom. Each understands the instinctual and changeable nature of the other. But at times, Pisces needs more emotional stability than Gemini can offer, and this only adds to the Piscean insecurity. When Pisces gets the sad look of neediness in their eyes, Gemini heads for the door.
But the Sun is just one side of the story, albeit the brightest one, in your birth chart. Much will depend on the other planets and energies. If there's love chemistry, look to Venus and the Moon for further harmonies.
In essence, Gemini and Pisces are two chameleons, which is part of the fun, but also makes it erratic. Even when they try to be sincere, shadow Gemini-Pisces have a diffuse or slippery sense of self that causes both to be manipulative without realizing it.
Gemini is way too emotionally detached for Pisces, who may feel drained after time spent listening to the whirlygig, feeling everything that Gemini says. Gemini won't want to be censored, and will grow restless when any semblance of clarity from Pisces is eclipsed in a dreamy fog.
Basically this relationship is like a ship lost at sea without an anchor. Both thrive with a partner that leads the way, being so flexible and reactive to others. If Gemini tries to be the boss, Pisces will end up feeling trod upon and misunderstood.
On a positive note, Pisces benefits from the detached perspective of Gemini, and can help shape their imaginative gifts. Gemini may be enchanted by the Piscean depths, and grow more heart-wise through the connection. This pairing makes for a memorable, possibly bewildering encounter. The game-changer is love, with the potential to build trust over time.