This is a simple reverse of the classic 69 position with him on top of her. Just as pleasing as her on top 69 by any means and a good way to break the routine!
One word of warning for the guys here, don’t get carried away and thrust too far or too fast, it could ruin a great moment. Let her control the amount of penetration.
Again hard to concentrate but worth the effort.
Think I prefer the other way but I’m not complaining.