The 37-year-old actress slammed the rumors in a series of posts Sunday on Instagram Stories before sharing a screenshot of a text conversation she had with Faris, who split from Pratt in August.
"1. Not every woman is scorned and upset after a breakup. 2. Not every woman is 'furious' at another woman for dating her ex," Munn wrote of reports Faris was "furious" about the pair supposedly dating.
"3. So even if I was dating @prattprattpratt, some tabloids got me and @annafaris all wrong," she added. "4. Women respect and love each other a lot more than some people like to think."
Munn poked fun at what her couple name with Pratt would be, suggesting "Crolivia" and "Prunn," before posting a photo of her exchange with Faris.
"Sooo... I would never respond to random tabloid stories, but since we know each other I wanted to reach out to you personally to tell you the story about me and Chris dating has 0% truth," the star told Faris. "I'm sure you already know it's not true, or maybe you didn't care either way, but I just wanted to reach out personally to tell you it's not true."
"Hi!!!! Oh my god-this town is so [expletive] crazy-you are so sweet to text-I love you-having said that if you were my new sister in law I would be thrilled! -lets please catch up soon," Faris responded.