Sandra Bullock and her son, Louis, don’t seem to see eye to eye when it come to Halloween costumes.

During an appearance on The Tonight Show with Jimmy Fallon on Wednesday night, Bullock, 51, shared what she and her 5-year-old son Louis were planning for the Halloween weekend.

The Our Brand is Crisis actress shared that Louis planned on going trick-or-treating as a Ninja Turtle, which she deems a “classic” costume. On the other hand, he had very different plans for his momma’s costume.

“We usually match, but this year he sort of deviated off the matching,” Bullock said, adding that Louis chose a “Slutty Batgirl” costume for Sandra.

Sandra Bullock was NOT PLEASED with her son's choice of Halloween costume for her: https://t.co/qJJ8Oxw6RR pic.twitter.com/RjQ6LuhHTe

— ELLE Magazine (US) (@ELLEmagazine) October 30, 2015

“It was like the most inappropriate thing,” she explained. “You know how there’s regular Batgirl, and then there’s the ones for those moms that like to really turn it out? Like a little leather skirt, and the boots that go over the knee, and a bustier?”

“I’m not going to be wearing that,” she said adamantly.

The costume apparently caught Louis’ eye as the two looking through a costume catalog.

“He went, ‘Mama, you hasta wear this!’” Bullock says. “And I went, ‘No, mama doesn’t want to. I’m not wearing that around your friends.’”

Sandra Bullock uses fake arms to scoop ice cream for Jimmy Fallon: https://t.co/mM6UEvEknd pic.twitter.com/XeVwDxR8i6

— E! Online (@eonline) October 29, 2015

Instead, Bullock has other ideas for a costume.

“Either a pirate wench, covered head to toe, or just the basic mime,” Bullock said with a laugh.

Fallon and Bullock went on to take a moment to reminisce about working together on a Canadian soap opera called Jacob’s Patience, in which Bullock owned an ice cream store. Bullock seemed to remember that time of their lives fondly. However, Fallon had a very different take about working with the actress.

“You were a little difficult to work with,” he says. “You refused to use your own arms.”

Sandra Bullock was hilarious on @FallonTonight using some fake arms in this sketch: https://t.co/2ftrqZs8r5 pic.twitter.com/DniUMI2Okv

— JustJared.com (@JustJared) October 29, 2015

Fallon explained that in order to make Bullock feel more comfortable, the director made everyone on set use mannequin arms as well.

Fallon put up a hilarious clip from the fake show, showing Bullock trying desperately to scoop ice cream using only fake arms. In keeping with the modus operandi of any Jacob’s Patience sketch, the two managed to get food everywhere as Sandra Bullock dipped her fake hands into hot fudge, broke every cone and ultimately lost one of her fake hands in the process.