To rattle and hum is to hold your dick in a woman's mouth and rattle it while grasping the back of her head with your other hand. The sound she makes should be a gargling humming sound. It is advised that this technique be used during the act of face-fucking. Alternatively, R+H can be used in any orifice given how taut it is, or has become, from other endeavors. To pull off the move, one must have a licentious yet controlled aggression so as to not injure yourself or your partner.
by The Real Dr. Nick July 19, 2023