You should get a small directional microphone (directional so you can keep the microphone out of the camera range / view area) and use it for these videos. You can actually hear the sperm shooting out of your cock and it is a pretty cool sound at that! It sounds like liquid out of a syringe, turkey baster, baby bottle... you get the idea. Very pleasing sound when it is your cum blasting out. I don't know why they don't do that for fucking also. Good sex sounds like someone stirring mac-n-cheese in a pot.