I love the Frank and Lynn timing...so slowly done, like a seduction. This song is brilliant. And that animation is cute. Regarding "rapey" I defer to Alec and Jerry and their discussion on this particular term. Watch it all, but 5:20 is where the "rapier" segment starts. http://www.youtube.com/watch?v=s1u7A3sEnPY
Dunno about rapey but I always found that song kinda gross.