Stewart, 73, invited Blake Lively, 27, to speak with her at the American Made Summit in NYC on Nov. 8 to discuss the actress' lifestyle site Preserve. Stewart even introduced Lively as her "friend."
"I mean, it's stupid, she could be an actress! Why would you want to be me if you could be an actress?" Stewart scoffed. She added that if anything, she "wants to be Blake Lively."
Lively, now pregnant with her first child, showered Stewart with compliments in response and the strategy seems to have paid off.
"When we met Martha, she was like, 'I'll ride motorcycles with you, Ryan,'" Lively told the audience at American Made.
"That's the only woman that can creep up on my man and I would be okay with it."