As Caitlyn Jenner's lips look to have changed along with the rest of her, RadarOnline.com has a lip-off between her and other prominent members of her family, including Kim.
Caitlyn's lips have taken on extra puffiness in recent months, as the transgender icon has reportedly plunked in excess of $4 million on surgical procedures.
The star of I Am Cait gives her best duck face in a selfie, showing she's already mastered one key social media favorite.
The 65-year-old has adapted well in what has to be the most high-profile transition in history.
Caitlyn's daughter Kylie is also known for her changing lips, and her puffy lips have been the foundation of her evolving image.
Prominent plastic surgeon Dr. Tony Youn, who has not treated Kylie, told RadarOnline.com it looks as if the teen queen has had "lips plumped up with injectable fillers like Restylane."
Earlier this year, the youngest member of the Kardashian-Jenner empire, 18, was the focal point of a social media stunt known as the "#KylieJennerLipChallenge" in which her fans did their best to resemble the young socialite -- sometimes to disastrous results.
Kris Jenner was the subject of speculation after having her own case of swollen lips three years ago on an episode of Keeping Up With The Kardashians. The mother-of-five blamed it on an allergic reaction.
The 59-year-old "looks like she is definitely trying to keep up with her daughters' plastic surgery," according to Dr. Youn, who hasn't treated the "Momager" personally.
Khloe Kardashian's bloated puffy lips enhance her pout in this shot; insiders told RadarOnline.com earlier this year that the beauty has routinely received lip injections "for years."
Did we save the best for last? Kim Kardashian shows off her puffy lips in one of her (practically) universally-viewed selfies.
The queen of reality TV, 34, sticks to a time-tested formula of pouting and cleavage in this shot, in which she's flanked by her superstar husband Kanye West.
She's just having fun with us now! The social media superstar accentuates her brash look in this selfie. Readers, who in your opinion has the family's boldest looks when it comes to lips? Sound off below.