These bras promise to boost your bust... but which is breast?
FAKING a killer cleavage has just got easier - thanks to a new bra.
Debenhams Triple Boost bra promises to make boobs look up to THREE times bigger without going under the knife.

So how does the boob-job-in-a-bra compare to other High Street bust-boosting offerings?
Here, model Rosanne Ferraccu, 20, seen above in her normal B-cup bra, tells MELISSA SHEDDEN which she thinks is the breast in class, with ratings out of five.

Triple Boost, £22, Debenhams (available in sizes 30A-38DD)
The claim: Gives the biggest cleavage enhancement on the High Street.
Rosanne: "I feel like I could knock someone out with these.
"I can't help but feel sexy - my boobs look massive!
"The design is really clever as well because it feels like it's making the most of what I've got."
Cleavometer: 4

Maximise Your Assets, £6, Primark (32A-36D)
The claim: Boosts your cleavage by up to two cup sizes, thanks to foam pads that shape around what nature provided.
Rosanne: "This is the most comfortable of the foam bras and it does what it says - it is maximising my boob size.
"It's good value but the quality isn't great."
Cleavometer: 3.5

Triple Gel, £25, La Senza (32A-38DD)
The claim: This multi-way foam and gel bra will boost your assets by up to two cup sizes.
Rosanne: "This bra is the heaviest of the lot but it does sit snugly.
"You could never wear it with a boyfriend, though. I'd be worried that when I took it off half my boobs would be gone!"
Cleavometer: 4.5

THE WNNER: Full Effect, £30.50, wonderbra.co.uk (32A-38D)
The claim: A mix of air, gel and foam designed to enhance bust by up to two cup sizes. It is the lightest too, weighing in at only 80g.
Rosanne: "The original and definitely the best. The Wonderbra style is lower cut, showing more of my boobs.
"I feel super sexy but a little on edge that I might pop out."
Cleavometer: 5

2 Sizes Bigger Push-Up bra, £20, M&S (32AA-38C)
The claim: Will add two cup sizes to your natural cleavage thanks to super light foam, coming in at half the weight of traditional gel pads
Rosanne: "This bra is perfect for girls with big boob envy.
"With all the padding, though, I could never wear this on a date. I'd feel like I was cheating the guy.
"It feels like I've got two pillows under my top but I'm definitely looking like a D cup now."
Cleavometer: 4