This MUST be done when the mouth is open at its widest, to get the ultimate effect and the least chance of them biting your finger off. This must be a quick "in" "out" motion whilst the perp shouts "MOUTH RAPE". This leaves the victim feeling unsatisfied, violated and unable to finish their yawn.
THE ULTIMATE MOUTH RAPE.
Laura: See's opportunity and moves in
Laura: "MOUTH RAPE"
Indikah looks on in shock feeling violated.