Fapucational : Stretching Is A Form Of Physical Exercise In Which A Specific Muscle Or Tendon (Or Muscle Group) Is Deliberately Flexed Or Stretched In Order To Improve The Muscle's Felt Elasticity And Achieve Comfortable Muscle Tone.
Stretching is a form of physical exercise in which a specific muscle or tendon (or muscle group) is deliberately flexed or stretched in order to improve the muscle's felt elasticity and achieve comfortable muscle tone.
Link
Learn stuff while browsing for porn
original: https://reddit.com/r/Fapucational/comments/1neevm/stretching_is_a_form_of_physical_exercise_in/