Great scene and great concept! I gotta' admit the "through the chair" position seems a little awkward, overall and just in a "lining up" sense, but it's still pretty inspired. I REALLY liked the "seated guy, leaning back on desk girl" position though.
...but as always, the best part is the blastin'! ^o^
Hope you can keep up with new ideas and scene refinements for these. This one is easily your best so far. Thanks for making it free too!