Friends fans couldn’t keep their eyes off Jennifer Aniston as she donned a skintight white top that looked incredibly similar to one she wore in her classic US sitcom days

Jennifer Aniston left fans breathless as she donned a sheer white top for her latest video, which left her nipples on display.

The Friends star looked like she was back in her Rachel Green era, having fallen victim to plenty of awkward nip blunders while starring in the classic sitcom. In her latest Instagram video, Jennifer rocked a long-sleeved top and black skinny jeans, letting her blonde tresses fall around her shoulders in her cropped Rachel ‘do.

A pair of gold hoop earrings finished off her look while Jen styled her hair in the bathroom mirror, telling fans in the caption: “@Lolavie has a new addition to the fam and I’m so excited about this one! It’s taken over a year to get it just right and ALL my friends have used every one of my samples for the past year and are LOVING it.”

She added of her brand: “I hope you do too! With love. Introducing… the Sculpting Paste!” In the accompanying video, Jennifer said: “This is our little family – we’ve got our leave-in condition, we’ve got our detangler, we’ve got our shampoo and conditioner and we’ve got our hair oil.

Jennifer Aniston wowed fans as she slipped into a clinging top (Image: jenniferaniston/Instagram)

“And now here’s another addition, I love it so much. It’s paste – hair paste! I’m so excited. Et voila!” she summarised after styling her tresses with the product.

But Jennifer’s nipples being visible under her shirt took fans in the comments right back to her Friends days, with one gushing: “The nips are giving Rachel Green… she’s back in her Friends era for sure.”

Fans gushed she’s ‘back in her Rachel Green era’ (Image: NBCUniversal via Getty Images)

Someone else said: “I can only concentrate on one thing!” but another corrected: “Do you mean two things?!” And a fourth fan joked: “Lol they’ve been making a guest appearance since the 90s!”

Jennifer has opened up on why her nipples were so visible in the past, confessing she did wear a bra on-set despite rumours to the contrary. She told Vogue: “Yeah, I don’t know what to say about that! It’s just one of those things, I guess.

“I wear a bra. I don’t know what to tell you! And I don’t know why I’m supposed to be ashamed of them – it’s just the way my breasts are. But hey, I’m not going to complain!”

Jennifer was busy promoting her new hair paste (Image: jenniferaniston/Instagram)

She’s now “shifted her perspective” on her body, admitting: “If you’re going to walk out and have your nipples showing, or your belly is a little bloated, or you’re not at the weight you want to be – you are perfect no matter what you are, and who cares!”

Fans in the past have aired wild theories about the prominence of Jen’s nipples in the show, ranging from studio bosses keeping it cold on set to asking Jennifer and her co-star Courteney Cox to “cut holes in their bras”. But, according to the legend herself, that’s all hokey.