Blake Lively & Ryan Reynolds Sizzle At The Premiere For 'A Simple Favor'

Blake Lively isn’t down with reporters commenting on her incredible physique!

The 31-year-old star unintentionally showed up to the premiere of her new movie “A Simple Favor” wearing a blouse that was more revealing than she intended. Blake was rocking a Givenchy suit with a sparkling blouse underneath, but it turns out the blouse was sheer. 

She noticed the fashion faux pas later, but admitted to Jimmy Fallon on “The Tonight Show” that there wasn’t much she could do about it and she could only grab some duct tape to try and ensure things stayed in place. 

“It’s actually a men’s suit, believe it or not. But what nobody really realizes, see the look of horror on my face?” Blake told Jimmy Fallon on Thursday’s show. “I didn’t realize it was see-through, the shirt. That’s not a look I was going for. Because it’s a men’s shirt!”

And since she was so keenly aware of the impending fashion mishap — it made her even more self-conscious.  

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“You know when you’re freaking out about something and you know that’s all anyone else is seeing?” she explained. “You know, you’re aware of it, so everything everyone says is pointing out this thing you’re paranoid about, but no one’s really noticing.”

And naturally, things got worse before the better. Blake revealed that at one point it sounded like a reporter had shouted at her, “Your tits are amazing.” 

A mortified Blake seemed ready to let him have it and shot back. 

“I’m like, ‘What? Are we saying that? Have you been on Google in the past year? This is not OK,’” Lively said, referencing the recent Time’s Up movement. 

After a confusing conversation, the reporter added, “And your husband’s tweets are even better!”

“And I’m like, ‘Oh, tweets! Twitter!'” Blake laughed. 

Then of course she said she couldn’t help but think about how her chest really did look that night and pondered it on the walk to the premiere. “But how [is my chest]…How are they?'” 

Leave it to Blake to make a potentially heated situation totally hysterical. 

WATCH: Blake Lively & Ryan Reynolds Sizzle At The Premiere For ‘A Simple Favor’