You wouldn't think by the way they moved that either fighter was at all burdened by the new weight she sported. Samus Aran flipped and dodged with her usual grace and agility despite her bottom having swollen up to about triple its original size, and Marino was just as quick and nimble as ever with her bloated belly and gigantic breasts. Which was fortunate, considering that their expansion still made them sizeable targets for each other.
"Ow! Stop that!" Marino shouted, shielding her bosom from another blast of Samus' stun pistol. They were hardly any more threatening than a Metool shot, but they still stung. She retaliated by slashing at Samus with her beam daggers, only for the bounty hunter to barely dodge out of the way. The energy blades had been toned down to a non-lethal stun setting, but the tingling sensation in her left butt cheek from earlier served as a reminder not to get hit by them.
Noticing Marino was caught off balance by the attack, Samus immediately sprung forward, charging at her opponent at full speed. With her free hand outstretched, she grabbed and vaulted over Marino's head high into the air and behind her, and in the blink of an eye, converted her pistol to its energy whip form and began to lash at her opponent furiously while in the air.
"AUGH! OW STOP! YEOWCH YOU- DAMMMIT - OW OW!"
After what seemed like an eternity, Samus landed behind Marino, who had collapsed to her knees and was grabbing he own stinging behind now.
"Seriously!" Marino growled. "What the heck!?"
Samus smirked. "And with that," she paused for emphasis, "we're now even for that hundred ninja slap attack!"