Jump and drop onto her with Bubble Butt

There was no real chance to dodge this attack! The only way would be to take the attack in a way that wouldn't hurt so much. Thinking quickly, Buster Girl came up with the answer... She'd lead with some lead! The dazzling air-to-ground meteor that was Heat Girl was scary, but if she timed her jump just right, it wasn't so hard to get out of its way...

... The hard part was handling the explosion afterward! When Heat Girl didn't get her hug, she got mad; when she got mad, she got explodey! "Buster Giiiirl! Why won't you be a good girl and let me hug yoooou?! I just want a nice, lovey-dovey hug!!" the Robot Mistress ranted, thrusting her fists up and down in a comical expression of aggravation. That overreaction might be funny to watch, but the explosions that began to emanate from her body as she released her Atomic Fire were no joke! If Buster Girl took those flames head-on, even with her mechanoid-age body, she'd end up charred for sure!

Lead was known to have a pretty low melting point, but if she piled on enough of it, it would have to work! Nothing supplied more lead than Bubble Butt! Buster Girl swapped over her color scheme to gray mid-air, then fell, appropriately, like a ton of lead. Her butt connected hard upon Heat Girl's face, knocking her to the floor! The flames around her went out with a whimper, as the helpless mommy-bot kicked her legs and slapped her arms in a child-like tantrum, whimpering beneath the weight of Buster Girl's huge, amplified buns. "He he he! I never get tired of this! You'd think you'd see that one coming," the heroine chuckled like a bully. "Hey! Are your kids the age where they think butts are funny? I guess they'd have to be, or else, they'd be getting up to all kinds of shenanigans with that big, squishy butt of yours~"

She lifted her buttocks for just a moment, allowing Heat Girl to whimper out a retort. "M-My kids are precious little angels who don't care about dirty things like that! They would never dream of a misbehaving girl doing something as rude as sitting on someone else's face-!"

Laughing, Buster Girl pressed both hands upon the ashy floor and began to twerk her bottom up and down, buffeting Heat Girl's reddening face a few more times.

"Stop, stop! Get off! You naughty, naughty child!" Heat Girl protested, finally shoving Buster Girl off. When she got up, her hair was disheveled and her rounded sun-hat was flattened to her head; her face was beet red from a combination of embarrassment and the weaponized butt pounding she'd just received. "Y-You... that was rude... so rude!" she protested, pressing both hands to her face and wearing a scolding expression that just came off as cute on her mommish face. "I'm going to spank that big butt of yours! Just... Just give me a minute..." The girl stumbled around dizzily, while holding her arms out to steady herself.

((Buster Girl used 10 Bubble Butt energy))

((Heat Girl took 20 damage))