As LittleMissLola said – we need to know what move you call the "gemini". Everyone disagrees which is which when it comes to scorpio and gemini.

To me – scorpio I the one where your OUTSIDE leg is hooked around the pole. Gemini is the one where your INSIDE leg is on the pole. I find the scorpio much easier, because I can grip with the inside/back of me knee – but with gemini the crook of my knee is NOT on the pole, instead parts of my calf and thigh are. However, it seems a lot of people on this site consider scorpio and gemini to be the other way to me. So I am going to assume you are trying the move with your outside leg. Aaaaaanyway ….

My instruction for Scorpio/Gemini (Using your outside leg) the way that I find easiest

Stand next to the pole – your inside hand should be your strong hand (usually your right). Your inside hand should grip the pole LOWEST (around shoulder/face height) and your outside hand should grip higher (about head height).
Step forward with your INSIDE leg and swing up with your OUTSIDE leg so the heel of your outside leg hooks onto the pole.
When you are happily inverted (with your other leg on the back of the pole, as usual you need to try to lengthen out your body. This gets your hands out of the way of your knees.
So try to loosen the grip on your hands, and "uncrunch" your body so you are more elongated. Next, hold tight with your arms and shift the weight OFF your outside leg (the one that is going to be hooking) a little, so you can move it – and squeeze your knee around the pole.
It needs to be totally insde your knee – no air between the back of your knee and the pole. If there is a gap, try to "budge" into a better position.
If you haven’t already, drop your inside (or back) leg down – so you have the two bent knees kinda parallel to eachother
Now you are in shape you just need to take your hands off. This is the part where it helps to have bar skin on the back/stomach. First take off your TOP or OUTSIDE hand. This on shouldn’t be doing much work anyway.
Now leg go of the INSIDE hands but ONLY with the fingers. Do not move your armpit or shoulders because this is where the grip is. When you are comfortable with this you can stretch your arm down, to make it match the other arm — but do no break contact with the pole. You will definitely need bare skin around the armpit area – so NO t-shirts or long sleeved shirts will do! https://www.studioveena.com/img/smilies/icon_e_wink.gif

Good luck!