Step 1) Ensure your subject is not aware of the impending maneuver
Step 2) Grasp the tit using the thumb and forefinger. Which hand you use for each breast will depend on whether you execute the maneouver from in front or behind the subject.
Step 3) Pull the tit directly away from the subject's core. A twisting motion can be utilized to loosen the tit in the event you do not have the strength to directly remove the entire handfull of breast.