Jennifer Aniston reveals her toned physique in photoshoot to celebrate 51st birthday

Over the intervening years, it's inevitable that our appearance will change as we grow older. But there's no reason to fight against this natural process. Instead, more and more people are embracing the skin they're in, inspired by trends such as the Grombré movement, which inspires people to embrace their gray hair.

Jennifer Anniston has always been known for her timeless good looks. Jen turned 51 this week, and she's now delighting her fans perhaps more than ever before, as they have the opportunity to engage with her on Instagram.

Watch Jen's speech at the SAG awards this year:

If you need proof of this then just take a gander at the incredible pictures Jen shared on social media this week. Aniston, who only recently got herself an Instagram account, just uploaded a number of pics of her toned body from a photoshoot she participated in to honor her 51st birthday, and she looks absolutely incredible.

Jen captioned the pic: "Thank you @interviewmag for this birthday surprise. I had no idea this would be coming out today. Feeling proud and honored to be celebrating with this cover. Thanks to the Interview team for celebrating women at every age... turns out 51 is pretty fun. [sic]"

She added: "And thanks to @nickkharamis, @melzy917, @alique_studio, @mrchrismcmillan, @gucciwestman — and my sister from another mister Sandy Bullock for talking to me about whatever the hell we were talking about. I love you so much. 🥰🥳 [sic]"

Indeed, a number of Jen's celebrity friends also took to the comments to wish her many happy returns of the day, including Courtney Cox, Reese Witherspoon, Lisa Kudrow, Hailey Bieber, Drew Barrymore, Mariah Carey, and Johnny Knoxville.

An Instagram comment. Credit: Instagram

Happy birthday to you then Jen! If I look as good as you do at 51, I'll be very happy with myself indeed...