The actress posted a super-relatable selfie, in which she's rocking a t-shirt with milk stains.

Amber Rose Tamblyn at PEN Center USA Literary Awards
Credit: Michael Tullberg/Getty Images

Amber Tamblyn is up to it again! The actress, who gave birth to her first child with husband, comedian David Cross, last month, first got us laughing by trolling followers with a hilarious,  faux celebrity baby name. Yesterday, she took to Instagram to get real about breastfeeding -- and just how un-glamorous it can be!

Tamblyn posted this photo of herself looking in a bathroom mirror, wearing a worn t-shirt with milk stains, alongside the caption, "Who Wore It Better? Left tit or right tit? #MilkLife #StarsTheyreJustLikeUs!" Ha! Check it out.

Commenters are, understandably, loving so hard on Tamblyn's tongue-in-cheek post. Instagram user @coastalgoddess wrote, "I just love how real this is. Because that is exactly what it is like." Another named @gonehiking8 cheekily played along, writing, "I like how 'on-point' your left nip is, but I gotta give it to your right mamasita; she's zesty and full of pizazz and clearly doesn't give a damn about where that milk ends up! I vote for righty." Hilarious.

Looks like Tamblyn—who has already won our admiration for being an advocate of equal rights and female empowerment—is going to be one of those celeb moms (like Chrissy Teigen or Tess Holliday) who often sheds light on the fact that, even though she's in the spotlight, she's still just a woman who's trying to keep her L.O. happy and fed! So looking forward to seeing what other all-too-real, LOL-worthy new mom truths she shares with her followers in the weeks and months to come.