I am having a thought here!
I was just playing KoTOR, and I was on the star forge fighting Bastila.
During the fight, my character was fighting very closely to bastila, and their faces somehow collided with each other, resulting the illusion of a kiss.
Just a thought here; I don't own the program KoTOR Tool and don't know how to use it, but is it possible that you can move Revan up close to Bastila on the kiss scene, and collide his face with bastila's, resulting a kiss?
Edit: I mean, its just sounds so crazy and so simple, can it just might work?