Now this is udder-ly hilarious. 

Erica Perez, a California mom of five girls, convinced her 5-year-old daughter, Summer, to drink her breast milk in exchange for an ice cream bar. 

And the little girl pricelessly fought back tears as she choked down the “yucky” nectar that was freshly squeezed out of her “cow mother.” 

“Are you ready to try my milk?” an excited Perez, 29, asked a nodding Summer in their trending TikTok post. 

In the video, with more than 3.2 million views, the mom — who recently gave birth to her second set of twin girls — eked out a few splashes of breast milk into a glass and promised to treat her toddler with a sweet novelty if she downed the booby juice. 

And although Summer initially accepted the challenge with confidence, the kindergartener struggled to uphold her end of the bargain after catching a whiff of the drink. 

“It smells yucky, not like the real milk like we drink,” said a gagging and evidently grossed-out Summer as she covered her mouth in disgust. 

After some prodding from Perez, a hesitant Summer unsuccessfully attempted to mask the odor of the breast milk by holding her nose. The kid even put a pencil between her lips, presumably hoping the lead would distract her from the smell and taste. 

But Perez insisted that she drink the liquid without gimmicks. 

“OK, I’m gonna do it,” Summer said after taking a deep breath. 

However, despite her best attempts at self-nudging, the little girl was unable to take the shot of milk and instead broke out into a fit of nervous laughter. 

“OK,” said an admittedly nervous but chuckling Perez, “I’m going to count to 20 and you have to drink it [by the time I reach] 20.” 

“If you don’t drink it by 20, then you don’t get the ice cream,” she told her kid. 

And with her eye on the prize, Summer chugged the breast milk within the first five seconds of Perez’s countdown. 

But the darling daredevil appeared to immediately regret making the deal. 

“That was yucky!” a red-faced Summer yelled in a subsequent clip, as she tried regaining composure after coughing and tearing up from the milk. 

“It smelled like coco melons with strawberries … and some spicy chips,” she exclaimed, before underscoring her revulsion with a loud “Ewwww” yelp. 

“You really wanted that ice cream, huh?” said a cackling Perez before handing over the Häagen-Dazs dessert. 

With her reward in hand, Summer insulted Perez, saying: “My mom is yucky. She made this milk. She is the yucky cow mother.”

But TikTok spectators thoroughly enjoyed watching the child squirm. 

Low blows aside, the girl was so repulsed by the lingering taste of the breast milk that she couldn’t even savor her ice cream. 

“I bet she won’t do that again,” laughed a commenter. 

“Oh my god I gagged with her,” another joked. 

“She’s gonna be so healthy,” penned another digital fan, noting the many health benefits of breast milk. 

Studies show children who are breast-fed have a lower risk of developing respiratory infections, gastrointestinal diseases, diabetes and childhood leukemia, according to the American Academy of Pediatrics. 

And in response to cheers over the immune-system boost Summer likely got by tossing back her mama’s milk, Perez wrote, “Yes! Lol, [this is a] double win for her!”