Parallel Universe

Holly claims to have invented a matter transport device called the “Holly Hop Drive” (A red box with a stop and start button on it) and the crew try and use it, but it doesn’t bring them to earth, it brings them to a parallel universe where women are the dominant sex. While Rimmer is trying to avoid his opposite’s sexual demands, Lister seems to be getting on very well with his. The Cat’s opposite (unfortunately for him) is a dog, and even Holly has an opposite, Hilly. After partying all night long while Holly and Hilly fix the Hop Drive they wake up to find Lister has accidentally slept with his opposite, who tells him that in their universe, the men give birth to the babies. After returning to their own world, Lister uses a pregnancy test, and much to Rimmer’s delight, they learn that Lister is pregnant!