SPARKL, cybernetic domestic android, rubbed his oddly shaped forehead and wished the pain in his cerebral circuits would go away.
This wasn't Twilight Sparkle's first Red Dwarf loop, though usually she replaced either Dave Lister or (once) the ship's computer Holly. Substituting for Kryten- that was a first, but it wasn't the cause of her* headache.
Nor was it either of the natives still in the Loop. JMCS Red Dwarf's computer Holly wasn't a Looper, and at the moment s/he wasn't even online due to a processor-overclocking experiment that had cured the computer's cyber-senility at the cost of reducing its estimated remaining run time to about a minute and a half. The Cat, who'd begun Looping after the Crash, was Awake but might as well not have been. Like his evolutionary forebears, he had a microscopic attention span except when it came to food or sex. (Thankfully SPARKL was technically male at the moment, insofar as the term could apply to a mechanoid.)
No, the two people- or rather ponies- replacing Dave Lister and Arnold Rimmer were the reason SPARKL wanted to detach his head and dunk it in a pail of ice water.
"I still say we should use Holly's firing program," Arnold C. Lestia insisted.
"Hey, you lost the vote, fair and square," Dave Luna snapped. "Look, I move planets and moons around back home all the time. And my Loop memories include truly vast experience with billiards. All I have to do is synergize the two and we're golden, all right?"
"This from someone who invented the fried egg- Moon pie- curry sandwich."
https://www.fimfiction.net/story/98568/96/mlp-time-loops/mlp-loops-92