The actress, 19, shared the outtakes from her photoshoot for the publication on her social media, and among a sea of fashionable shots, she also provided rare glimpses of her tattoos.
The English star has a total of five tattoos and four of them were on display in the photoshoot: a cowboy hat on her arm, a small heart on her collarbone, a rose near her back, and the number "011" on her wrist.
While Millie hasn't opened up about the significance of her tinier tattoos, the "011" is a tribute to her character from Stranger Things. She also has the word "Ruth" inked on her right ribcage, a nod to her late grandmother.
Fans reacted to the photos from the Glamour cover with compliments like: "This is giving early 2000s vibes," and: "She's grown into the most beautiful woman," as well as: "I love that every picture she shows a tattoo."
Millie opened up in the interview about her relationship with her fiancé, Jake Bongiovi, 21, and the beginning of their romance in 2021, saying that she dealt with self-doubt and insecurity at the time after her previous relationship with TikTok star Hunter Ecimovic.
"I think I was so afraid to be a strong woman in a relationship," adding: "When I met Jake, I just felt I could be loud. He embraced that and encouraged that. And I fell in love with myself while being with him."
She thought that she was "too much," but got reassurance from Jake, as she stated: "I was like, 'Why do you love me?' And then he listed all these things that I hated about myself. I was like, 'You see good in those things?' And he was like, 'Of course I do.'
"Those are things that I love about myself now. He was a really big, huge part of me loving myself and becoming a woman. It was like, 'Wow, I really love this person because he allows me to love myself.'"
In April, the couple announced that they had gotten engaged, and she told the publication that her dream was to start a family with the actor.
"I wanted to be the woman that my mom is to me and I wanted to be the woman that my grandmother was to me," the Enola Holmes star said.
"So that was never my, like, intention, to be a wife. But after meeting Jake and seeing, 'Oh, I don't have to be this stereotypical wife for him. He doesn't want me to be that either. He wants me to go and do my thing and live my life, and he will hold my hand in the process of that.' I was like, 'Oh, I do want this.'"
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