Newton's Third Law
Laying on your non-dominant side's hip, proceed to lube your entire hand. Next, shove entire right hand inside your anus. It is best to feel around a bit before proceeding to your left hand. Your left hand will firmly grasp your phallic member and fondle your throbbing shaft. With both of your hands in motion the force applied thus shall be performing Newton's Third Law.Newton's Third Law of Motion
Example:
Person 1:What is Newton's Third Law of Motion?
*Random guy punches Person 1, person 1 goes to the floor*
Person 1: OW!
Random Guy: That's the law
Person 1:What is Newton's Third Law of Motion?
*Random guy punches Person 1, person 1 goes to the floor*
Person 1: OW!
Random Guy: That's the law