My, it's obvious of course...If Natsuki gets jealous..By the way, Fujino....You have Kuga, so why are you hitting on other women?!That's right, Shizuru...(But couldn't say it out loud)She'll PUNISH me <3PUNISHMENTI'm the ate-uma!!
Ate-Uma: A stallion brought close to a mare to test her readiness to mate. (i.e. Nao is being used as bait to make Natsuki act/prepare to "mate.")
(Translation taken from a hard-translated version by Seravy.)