It's called the cowgirl.

[she sounds a little too delighted to be someones first exposure to the wonderful world of sex positions, but you take your thrills where you can get them]

But don't get me wrong, I'm not here to dominate you. You can take the reins if you want to.

[and she's moving his hands to place them over her chest to let him know it's okay, rocking her hips once weakly to get him accustomed to the motion]