Kaley Cuoco has admitted she had breast implants when she was 18.
'The Big Bang Theory' actress had previously brushed off speculation but has now confirmed she went under the knife and claims it was the "best decision" she ever made.
The 29 year-old appears on the cover of Cosmopolitan magazine wearing denim hotpants and pulling her top aside to show off a black bra.
As a teenager in 2002, she previously spoke about Hollywood stars feel the need to have surgery, saying: "I'm only 16 years old but I can understand why many other stars have chosen to change their looks."
In the new interview, she also admitted she was obsessed with her public image and couldn't help Googling herself.
Kaley said: "I started reading [online reports] and thought, 'Maybe I need to make more of an effort and not go out in my UGGs and be disgusting.' So I started putting on make-up.
"And they started writing, 'Wow, someone really likes being in front of the camera' and 'Her hair's done now for coffee.' I couldn't do anything right. Why am I reading this stuff? But I'm obsessed. I openly admit to being totally insane about that."
Meanwhile, Kaley also told the magazine she felt like a "rock star" on her wedding day, when she married Ryan Sweeting in December, just six months after they started dating.
She said: "I admit it happened fast, but that's who I am. When we met, I knew he was the one. [At my wedding], I felt like a rock star and a badass. What was amazing in that room, it was so full of love. It was like nothing I'd ever been to before, and it was exactly what we wanted it to be. It was the eighth wonder of the world, the greatest wedding of all time."

Lily Allen was forced to relieve herself on a motorway.
The 'Air Balloon' singer - who has two children, Ethel, two, and 14-month-old Marnie, with her husband Sam Cooper - had to pull her car over by the side of a road as she was desperate to pee, and she was so impressed with her public urination, she even shared a picture with her twitter and Instagram followers.
She tweeted: "P***ing on the hard shoulder #gettingolder (sic)"
And then added: "6m p**s (sic)"
While many of her followers saw the funny side of the updates, others were not impressed, with one writing "grow up", another adding "grim" and one user sarcastically commenting "classy".
Lily, 28, isn't afraid to share intimate details in public, and earlier this week she spoke of her teenage confusion on how to groom her pubic hair.
She said: "Can we just talk about pubic hair? Being a teenager I was endlessly confused from one boyfriend to the next. They wanted completely different things [down there]. One said no, another wanted her it jazzy. They probably didn't know what they liked really."

Halle Berry is a "machine".
The 47-year-old actress is currently juggling filming new TV show 'Extant', promoting her film 'Frankie & Alice' and caring for her children Nahla, six, and Maceo, five months, but doesn't think her workload is too much for her as women were "built to multitask".
She said: "I know I'm not alone. Women have done this forever. We are built to multitask. When you think, 'How can I not sleep, nurse and work?,' you just do. We are machines like that. We are built to do this."
Halle - who has Maceo with husband Olivier Martinez and Nahla with ex-boyfriend Gabriel Aubry - was delighted to bid farewell to her "gypsy" lifestyle and stay rooted in one place to work in TV, even if she does work long hours.
She told People magazine: "I no longer can afford to have the gypsy life. This [show] allows me to stay home and still do something really creative and cool that I love."
"My kids can come visit me and I can tuck them in at night."
The actress recently admitted she is trying to find "balance" in her life.
She said: "What I'm learning to do, trying to do right now, is find the balance.
"My baby is always with me on set. I bring my daughter after school. I have a nursery there, a playroom for her, so I try to make it as nice as I can for them to spend time with them, see them."

Kate Winslet thinks being pregnant destroyed her brain cells.
The 'Titanic' actress - who has children Mia, 13 , and Joe, 10, from previous marriages and son Bear, three months, with husband Ned Rocknroll - admits she suffered a lot of memory lapses when expecting her youngest child, but is slowly reacquiring the knowledge she lost.
Kate said: "It's lovely actually having had the baby because now all my brain cells are coming back to me and I can remember things - like the films I once made!"
The 38-year-old beauty also admitted she hasn't had many sleepless nights since welcoming Bear into the world.
Speaking on BBC Radio 2, she said: "The baby's wonderful, and actually at night he's a pretty good sleeper. He's not much of a day-time sleeper but he's very good at nights."
The 'Divergent' actress has already shed the pounds she gained during her pregnancy, but insisted she hasn't deliberately done anything to lose weight, attributing it to "Mother Nature".
She said: "She's been on my side this time."
And the British beauty slammed the constant stigma around women's post pregnancy bodies.
She said: "I think there's terrible pressure on women to lose baby weight. It's a really tricky subject actually because everyone's different.
"We shouldn't talk about it too much, it just adds to that whole debate."

Britain's Duchess of Cambridge has commissioned a Ralph & Russo gown for her tour of New Zealand and Australia.
The royal is reportedly hoping to make a big impact thanks to a bespoke dress from the high-end couture label when she heads Down Under on April 7 with her husband Prince William and their son Prince George for their official visit of the Commonwealth countries.
A source told Grazia magazine: "Kate visited Ralph & Russo's boutique last month and said she was looking for inspiration for the tour. She liked that they had Australian connections and has apparently given them specific instructions for a gown."
This marks a change in the 32-year-old beauty's usual high street style since the designs, courtesy of Australian couple Tamara Ralph and Michael Russo, come with a price tag upwards of £50,000.
It was recently alleged Queen Elizabeth had banned Catherine from wearing anything high street on the tour and wanted her to adopt a more ladylike and "regal" look.
The insider said: "Kate is taking this tour very seriously. She's putting a lot of thought into what she wears and she's opting for some quite expensive choices as a result.
"Kate's entire wardrobe for 2012 cost less than one of Ralph & Russo's gowns! She's really upping the ante and opting for higher-end designers than she would normally choose."
Catherine Walker, Temperley and Alexander McQueen are also said to have been approached to kit the duchess out for the tour.

Yes bassist Chris Squire is writing his autobiography.
The 66-year-old musician, who rose to fame in the progressive rock band in the late 1960s, has been working on his memoirs with actor friend Vincent Gallo and hopes to sign a publishing deal within the next year.
He exclusively BANG Showbiz: "I sit down with him, we talk, we record it, then he goes and transcribes it.
"We're about half way through that and have been working on it for about a year.
"We have to schedule time, he lives in Los Angeles and I live in Phoenix in Arizona. We have to find time to do it, sometimes I'll go to him, sometimes he comes to me."
Having previously spoken about his experiences with LSD and marijuana during the 1960s, the book is expected to detail crazy nights on the road as well as chapters about his earlier life and his love of music.
Chris explained: "It's a general overall conversation about my life. Hopefully within a year we'll be able to wrap it up and get it out there. We haven't signed a deal yet, we'll get it written first, I've talked to various people about doing it before.
"I'm sure there will be juicy stuff in there but [groupies] is not going to be the main aspect."
He joked: "Let me see ... there were probably three or four thousand [though]."
The band - which has had a number of line-ups over the years and features new frontman Jon Davison - were also in talks about a Broadway musical but Chris insists there are no plans for it to go ahead at the moment.
He said: "It was a good concept but it's like any Broadway show, it's on six or seven nights a week, you have to put bums on seats for that amount of time. You never know with these things, it could work, it might not work."
Yes will release their new studio album 'Heaven and Earth' on July 8.

The Kinks' Dave Davies claims his relationship with band mate and brother Ray is "toxic."
The siblings haven't played together since 1996 after a number of arguments and the 67-year-old guitarist claims he doesn't want to spend too much time with him anymore.
Speaking to The Independent newspaper, Dave said: "The thing is, there's healthy relationships, and toxic ones. And the older I get, the more difficult I find it being around Ray, because - I don't want to use the word abuse - but I feel my energy seeping away from me sometimes if I'm with him."
Dave insists he doesn't want to be "stuck" in a place feeling jealousy, hatred and envy and "generally being unhappy" around the band's frontman.
He explained: "Being with Ray for too long gets me back in that cycle. But then, families are difficult, and you can learn from discomfort. Ray and I have been each other's most important teachers. Maybe that's the clue to the whole relationship."
However, he also claimed that there was no animosity between the pair, saying: "It's like some people prefer me and Ray to be at each other's throats than to be brothers.
"In my 30s and 40s, I resented the fact that Ray gave me so little credit for my input and creativity. But my love has always been relentlessly directed towards him."
Dave will play his first UK show in 13 years on April 11, with a gig at London's Barbican Hall, and in January Ray discussed a possible reunion for the band's 50th anniversary, which he claims was "as close as it's ever been to happening".

Iggy Azalea has defended her Biggie Smalls remake.
The 23-year-old hitmaker worked with singer Keyshia Cole and sampled the late rapper's 1997 posthumous release 'Mo Money Mo Problems' and Iggy insists it wasn't meant to be a rip-off.
She told America's RapFix Live: "First of all, I love Biggie forever and Tupac, and that's a sampled song. So don't be mad about something that's sampled already."
The 'Fancy' hitmaker went on to explain how music producer Irv Gotti initially approached her about modernising Diana Ross' 1980 hit song 'I'm Coming Out'.
She said: "Irv hit me up and said, 'Hey I've got a record with Keyshia on it and it's gonna be for the soundtrack to this Cameron Diaz movie 'The Other Woman'.
"It was just supposed to be a remake of 'I'm Coming Out', it wasn't supposed to be 'Mo Money Mo Problems', and I didn't know what I was getting into."
But despite critics reacting badly to the release, she insists she's proud of the record and wouldn't go back on her decision.
She said: "I'm from a generation where I don't think 'I'm Coming Out' - I think 'Mo Money Mo Problems'.
"So I thought, I need to get my Ma$e on, and I went with that vibe. Then I think when people heard it they said, 'She's doing the Biggie remake,' and I don't know if it was necessarily meant to be that. It's open to interpretation. I didn't know what I was getting myself into, but if I did I would've said yes. Because any rapper that gets asked to do that is gonna do that."

Russell Brand is hosting a documentary about drug addiction for BBC Three.
The comedian-turned-political activist - who is a recovering alcoholic, heroin user and sex addict - has signed up to front a one-off programme called 'Russell Brand: Give It Up', which will see him interview addiction sufferers and people in positions of power as he investigates addiction treatments around the world.
The 60-minute Matchlight show will be a follow-up to his 2012 documentary 'From Addiction To Recovery', according to Televisual.com.
Russell's aim is to investigate how to improve treatment for addicts in the UK, and will see him travel to Switzerland where his views on abstinence-based recovery are challenged.
As well as speaking to key political decision-makers, government officials and police staff, he will chat with addicts from all walks of life who are currently battling or have overcome their dependency issues.
'Russell Brand: Give It Up' is just one of many new factual and current affairs shows commissioned by BBC Three controller Zai Bennett.
He commented: "BBC Three is the only channel that commissions original documentaries and current affairs specifically for young adults. These shows cover a range of topics from the war in Afghanistan to life at Bangkok airport, from a pupil referral unit in West London to drug cartels in Mexico.
"They demonstrate the range and quality that BBC Three viewers expect from our top-fight factual content like recent agenda-setting documentary 'Life And Death Row'."

James 'Arg' Argent thinks his relationship with Lydia Bright is irreparable.
'The Only Way Is Essex' star split with his girlfriend of four years following revelations he'd cheated on her and as he prepares to release his tell-all book 'Living It Arg' he's confessed that he doesn't see any way back for them.
He said: "When we did break up, initially it wasn't a nice break up. It was bitter and angry and at the moment it seems irreparable, but who knows in the future."
The 26-year-old reality TV veteran - who's been absent from only one episode out of eleven series of TOWIE - blamed his change in lifestyle when he joined the show for his infidelity.
He explained to 'This Morning' hosts Phillip Schofield and Holly Willoughby: "When TOWIE first started I didn't have any money, no attention from girls and as soon as the show started ... Lydia was the only girl I'd ever been with and I didn't deal with the fame too well.
"We haven't had any proper contact for about a year and a half, but I'd like to think that the book explains everything to Lydia. I think she'll have comfort from knowing the reasons why I did it and the fact of how genuinely sorry I am."
Lydia made her first appearance on TOWIE since her departure in 2012 on last night's (02.04.14) season finale.

Sam Faiers is "disappointed" with her final episode of 'The Only Way Is Essex'.
The blonde beauty starred in the ITV 2 reality show for the final time last night (02.04.14), but was left disappointed when she realised a significant portion of the emotional farewell she'd bid to her co-stars had been edited out.
Sam wrote on Twitter: "Can't believe my last ever scene was cut down...I said some lovely things to & about everyone over the last 4 years...Very disappointed. (sic)"
During a heartfelt chat with co-stars Jessica Wright and James 'Arg' Argent, Sam revealed she wanted to "step off the Essex scene for a little while" to focus on her health following her diagnosis with Crohn's disease earlier this year.
The 22-year-old beauty also admitted that she had rekindled her romance with ex-fiancé Joey Essex and confessed she wanted to concentrate on their relationship.
Joey, 23 - who left the show last year - congratulated Sam on her decision to leave, writing: "I'm so proud of her. Well done my baby (sic)."
Former co-star Mark Wright also took to Twitter to praise her "amazing efforts" on the show.

Samuel L. Jackson has revealed workers in Cleveland thought he was being shot at when he filmed scenes for 'Captain America: The Winter Soldier'.
The actor reprises his role as super-spy Nick Fury in the Marvel sequel - which sees Chris Evans return as the titular superhero - and he recalls one shoot-out sequence filmed in the city left some office staffers fearing for his safety.
During an interview on 'The Daily Show' - which airs on 'Comedy Central' and 'Comedy Central Extra' - Jackson said: "At one point in the movie there's a moment where you see 19 guys shooting at the car I'm in, the windows are bullet proof so I'm just sitting there feeling dope but the people in the office buildings didn't know so they were looking out of the windows and were like, 'F**k!' "
Jackson is now a veteran of superhero and sci-fi films having appeared as Nick Fury six times with a contract to appear in another three movies and the three 'Star Wars' prequels.
The 65-year-old actor portrayed Jedi Knight Mace Windu in the trilogy and was thrilled when director George Lucas told him he'd make him look like the "baddest" man in the universe when he added CGI to his green screen scenes.
Jackson explained: "Lucas said, 'You kick all the ass you want and we will make sure you look like the baddest motherf***er in the universe!
"So (I'm shooting and) I have the music playing in my head, making the lightsaber moves and then when I go to see it in the theatre I was like "F**k! Look at me!' "