Blake Lively knows how to both start and immediately quash rumors, like the gossip girl she is.

On Thursday, the Simple Favor actor joked on Instagram about who fathered her children but quickly reined in her jest.

Lively had posted a photo of herself in a bikini, prompting a fan to ask, How have you had 4 kids???

In a reply, the Betty Buzz founder tagged her personal trainer, Don Saladino before walking back the implication that he was the dad.

Wait. No. Thats not how. Hes not the father, the actor quipped.

Hes just the one who helps me fit into (some of) my clothes again after, she explained. Hes an even better person and friend than trainer. And thats saying a lot.