Method 1 for undressing using Timeline. There are many ways to do it, I like this method.
Next week I'll share another way when I have time to record. I wanted to do this guide for a while but didn't have any undressing in my recent scenes.
Have fun experimenting with it and hope it helps you out
Ask me in the discussion tab if you have any problems
Look is Kelly by @PetaZwega with different hair

Kelly - Looks -
The weak should fear the strong So I played around in some older scenes and found this half baked look I made years ago. (Fun fact: in a sense Kelly now predates Sam ?) Though back then I used some DAZ textures on it so I had to find some...
