The fight had gone on for longer than anypony would have expected; after all, the two magicians were hardly the most physically apt fighters, beautiful as they were.
Exhausted, panting, and even moaning on occasion, the fight slows down to a crawl as Trixie put down her fist, before, in a sudden spate of jealousy and breast-envy, goes to smack and squeeze and twist at Twilight's left tit, hissing words akin to 'I don't understand what the Princess sees in your fake meatbags.'