Usually, I think a couple with the same Sun sign doesn't work out so well. I've seen very few successful pairings of the same Sun sign. In science, we say, "Like forces repel." And I think that is what happens. You are the same Sun sign, so you will see things about YOURSELF that you don't like in the other person, and this doesn't bode well. It's like having a relationship with yourself.
Also, you both have the same emotional makeup as the Gemini Moons. A Gemini Moon does mix well with the Aquarius Sun, and that would work crosswise since you both have it. I think you would just be passing the time together.
But being an Astrologer, I don't leave my common sense at the door. If you feel compatible and want to give it a try, I say do it and see where it takes you. You won't be soulmates, but everyone comes into our lives for a reason.