I like the m/f symbol idea. One comment I get now is that the place is too female centric, so as much as I like the lips I wonder if it could have something more fetishy inside. And I'm avoid gradients because if the printing costs.
I understand. However, I have a doctor appointment and I don't have time to beat the clock on the Open Phase. If you put me in one of the Top 5 Designers, then I will have the permit to upload new designs. ;-)