Damn, I totally missed the boat on this one. Although it has cut outs, I really recommend this one:
linkIt's not tooooo flexible (but not ridiculously hard), has a leather side and a suede side, so it feels softer if you'd like, and worked really well as a first for me and my ex, neither of whom were experienced. It's also cheap enough that you can see if you both like it before you start shelling out more bucks.
-EE