A)
How loving of you to use the word "encourage" rather than "make."

Making noise during sexual play is a turn-on and helps us know where our partner is in the sexual response cycle. The signs of arousal and stimulation, especially in women, are very hard to interpret, even with sound added. When we opening up our mouths to let sound out, we literally open up the body cavity and allow the energy and pleasure to be transported through us. It’s almost physically impossible to fully let your pleasure be known to your partner through sound and hold your pelvic region muscles tight at the same time. When we don’t relax our genitals, we restrict the flow of pleasure. Opening up our mouths tends to make our pelvic region open up also. The possibility of full body orgasms is then greatly enhanced...