That cover shot, with the talent looking into the camera, makes me suspect that this scene isn't much different from any other.

I've seen a lot of more recent scenes with a setup featuring someone wearing a mask and using a gun, which then let the viewer off of the hook at some point by "revealing" that this is just a role-playing scenario for the couple. Ashlyn Gere did a scene like this where the (toy) gun is inserted into her mouth before we learn that her hubby is just playing (cue "The Sopranos": "You let him hold a gun to your head? I thought you were a feminist?" "Well, usually he takes the clip out")