[What a sweetheart. If he ever wants to embarrass the shit out of her all Krieg's got to do is say all of that.]

The Kama Sutra isn't completely dedicated to sex so much as marrying emotional and physical intimacy through actions, some of those being certain position. They're not particularly strenuous, though.

[Then again Nariko can put her ankles behind her ears so maybe don't trust her understand of flexibility.]

Honestly, have you seen some of the normal poses? It's hard not to think about sex with your ass up in the air. Especially when it's mine.