First choose the morphing tool, then create.

There you have several tools like push, pull and smooth.   Use the push tool to make the breast get pushed in under the finger, then the pull tool to pull it out a little between and outside the fingers.

Then you can go to "save copy as" and make a morph out of it.  Then you can zero the morph you are working on, activate the morph. and then create new variations.