YOU SAID:
私は腰をつかんで自分を置いた
INTO JAPANESE
私は腰をつかんで自分で置いた
BACK INTO ENGLISH
I grabbed my waist and put it myself
INTO JAPANESE
腰をつかんで自分で
BACK INTO ENGLISH
Grab your waist and yourself
INTO JAPANESE
あなたの腰とあなた自身をつかみます
BACK INTO ENGLISH
Grab your waist and yourself
You've done this before, haven't you.