Genre Definitions? Easy!

One of my publishers has asked the authors to come up with definitions for the various subgenres of romance. Here's my list. Feel free to add what you like:

historical: past sex
contempo: present sex
sci-fi: space sex
paranormal: creepy sex
shifter: furry sex
vampire: bloody sex
inspirational: religious sex
BDSM: blasphemous sex...with whips.
f/f: spermless sex.
m/m: extra spermy sex

(caveat: No, I'm not being serious :P)