What he didn’t know was that with Karin being a sensor type of Shinobi, she was affected more by the Sexual Aura skill.
Samui should be funny than. If I remember right she is a sensor as well but Naruto has 200 aura by that point (220 if focused) SHe is going to rape him possibly gang rape now that I think about it (Karui and Yugito)
Author's response
Karin was a mere genin and undisciplined. Do you really think Samui would react like that? Not saying she won't have a reaction, but a more professional and colder personality type isn't going to react the way Karin did, even with the much higher Sexual Aura. That isn't to say I don't have something in mind for the busty Kumo kunoichi.