I would suspect that additional replies will not change jwd's opinion, but I think there is insufficient detail in the OP to reasonably offer an interpretation. Possible scenarios:
1) loose ball and during scramble A1 secures the ball between his legs with his hands. Even though his hands are on the ball are you really going to call a kicking violation? I'm not.
2) similar to #1, A1 now takes his hands off the ball to signal for a TO; NOW you are going to call a kicking violation? That would be a tough sell in my opinion.
3) OK, how about A1 has the ball lodged between his legs during the scramble but is prevented from reaching his hands down to the ball because...........B1 is holding him? PF on B1 right?
4) Wait, how about this one............A1 is trying to secure the ball with his legs while laying on the floor and intentionally not use his hands? Yes, I could see that in this sitch, A1 would actually "intentionally strike" the ball in trying to secure the possession. In that case, I agree with jwd, kicking violation.
I am sure I missed a couple of other possibilities.............