YOU SAID:
Sherlock wants to kis John till he kisses him back
INTO JAPANESE
シャーロックはジョンにキスをしたいと思って
BACK INTO ENGLISH
Sherlock wanted to kiss John
INTO JAPANESE
シャーロックはジョンにキスをしたかった
BACK INTO ENGLISH
Sherlock wanted to kiss John
You've done this before, haven't you.