In an interview with Power 105.1's The Breakfast Club on Feb. 13, Amber scolded Tyga, saying that he "should be ashamed of himself."
Khloe, 30, defended her younger sister in a Twitter rant, writing, "'I was a stripper since I was 15 years old,' Amber Rose told Foxx. Please don't worry about my sister who has a career & her sh** together at ONLY 17."
While Amber insists that she doesn't hate Khloe, she still feels like Khloe "didn't have to tweet 11 times and try to humiliate [her]."
"The only reason why these girls have careers is because their older sister had a little fun on tape. Let's be realistic. I never ever hated on that," Amber said. "I'm all for a woman making something out of nothing. If you can do something and bring your entire family on and make millions of dollars, that's dope to me. I love that. But I feel like because Kim is dating my ex it's just kind of weird."
Kanye, who Amber dated from 2008-10, and Kim Kardashian officially tied the knot in 2014.
"I could have totally minded my own business when it came to her sister," Amber said. "But, me being a dancer at such a young age, dealing with older men gave me the humility and knowledge to speak on such a subject. [But] I can understand why it came across the wrong way to her. I get it. But, that's a phone call she could have had with me."
Amber later brought Kanye into the feud by posting a picture that called out Kim's sex tape. Kanye, not one to hold his tongue, responded.
"I had to take 30 showers before I got with Kim," Kanye told Power 105.1 of his ex on Feb. 20.
Amber told ET that she was taken aback by the comment.
"We were happy when we were together and now all of a sudden I'm getting slut shamed because we're not together anymore and that's unfair," Amber said. "I feel like women deal with that constantly on a daily basis."
Now, the 31-year-old model-actress is using that shaming to empower women to have more confidence in who they are. She's writing a book called How to Be a Bad B**ch and she's starring in a movie called Sister Code, out May 8.
"A bad b**ch is a woman that has everything together," Amber explained. "She's a great mom if she is a mom. She takes care of her house. She doesn't take any crap from anybody, and she's a business woman."