I got a couple requests to draw a nude Jessica Rabbit recently... and I ended up doing this instead.
This idea just popped into my head and I had to get it onto paper. It seemed like kind of a natural mashup to me. Roger's hair is not totaly dissimilar to that of Matt Smith's Doctor, plus both characters have a penchant for bow ties and suspenders (or braces). And they both have leggy ginger companions.
Jessica's ensemble is based on Amy Pond's appearance in the episode "The Vampires of Venice."