As the pair's moans get louder and louder, echoing around your ears, driving you to insanity, you frantically try and pick at the padlock on your chastity tube, but it's secure, there's no way you're getting out.
You're mentally and sexually exhausted and can no longer hold your frustration back, you simple break down, rolling into a ball, in tears, as your wife screams with pleasure, enjoying a huge orgasm, thanks to another man.