that we've all seen in Cindy's gallery

http://www.evilminion.com/gallery/tenchi11.jpg

can somebody tell me more about it? I mean, 
what's going on there so those two end up in that 
position? heheheheheheheh... I read in the info 
she posted that it belongs to the omake, omake of 
the serie or movie or what? I would love to know 
more.

Thank you!!!

PD  Hi Cindy! long time no see!