Partying with an alternate self

"Okay," Dirk said as he stepped out of the shower with a towel around
his waist and one drying his hair. "So one of us is in the other's
dimension?"
"Right," said the other Dirk while munching on some potato chips.
"And it seems that our respective ships are at war with one another."
"It still seems odd that you were on a ship of a different name than
the one I'm one; and, yet, we have still run into each other." He
threw the towel he had used on his hair into a hamper and began
combing his hair.
"The most logical assumption that could be made, considering the facts
we've deduced so far, is that the ideals of good and evil are not the
only ones reversed." He wiped the grease off his hands onto a shirt
that Dren had left hanging on the back of a chair after an all night
binge. "I think that it could also be reasoned that the laws of
probability and improbability are also changed."
"That's probably the best explaination." Dirk reached for a clean
uniform and looked at his alternate self sitting in a chair at the
table, "Do you mind turning around."
"What?!" his double said back to him in surprise. "What are you
afraid of? It's not like you're covering anything I haven't already
seen. You are my duplicate, remember?"
"So! This is still a bit freaky. Now turn around."
"I don't smeggin' believe this," said the alternate Dirk as he complied.
"That's better," Dirk said as he zipped up his uniform and began to
put on his socks and boots. "Since the ship is under attack and
endangering the lives of everyone on board, I feel that it is our duty
to attend the John Wayne marathon that takes place at the cinema daily."
"John Wayne!? Good. All the scutters on the Red Dwarf want to watch
are Dorris Day movies."
The two left to catch in the latest exploits of the Duke on the big
screen.