Definitions by Anthrage
Sextable
A hot but down to earth girl who makes a great 'couch companion', someone both fine and fun, equally able to be insanely sexy or low key and comfortable, usually at the same time.
Couch Companion
Someone of the opposite sex, male or female, often an intimate friend, with whom one engages in make-out type activity (often while watching a movie), or even actual sex, but where said activity is limited to the couch and is not reflective of the overall relationship.
Couch Companion by Anthrage June 29, 2011