SCIENTISTS reckon they've discovered what makes the ideal set of knockers.

Perfect boobs are round, full, "moderately-sized" and evenly spaced with nipples relatively close together, a study found.

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Researchers analysed the characteristics of breasts most valued by plastic surgery patients and the general public.

More than 1,000 men and women were shown photos of the chests of 25 patients, aged between 18 and 45, who had sought aesthetic or reconstructive surgery between 2009 and 2019.

They were asked to rate the attractiveness of each pair on a five-point scale.

On average, breasts scored 2.5, with no significant correlations between specific metrics and ratings.

The team put this down to variations in personal preferences.

However, they did find that a projected contour - meaning a rounder and fuller shape - was associated with higher perceived attractiveness.

The five most appealing sets of boobs were round, had upper pole fullness (perkiness and prominent cleavage), and very little ptosis (sagging).

The breasts were also closer together, the distance between the nipples was narrower, and the space from the nipple to the fold under the boob was shorter.

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And they were "moderate" in size, estimated to be about a C cup.

Stars reported to wear bras of that size include Jennifer Aniston, Blake Lively and Rita Ora.

Overall, by morphing the top five sets, the optimum boobs measured:

  • Sternal notch to nipple - 8.3in (21.1cm)
  • Nipple to nipple - 7.6in (19.2cm)
  • Base width - 5.3in (13.4cm)
  • Nipple to inframammary fold - 2.9in (7.4cm)
  • Breast volume - 21in3 (343.7cm3)

The study, published in Plastic and Reconstructive Surgery – Global Open in January, aimed to provide guidance for surgeons - not define universal beauty standards, the authors said.

"As reflected by the findings herein, perceptions and standards of beauty vary widely from individual to individual or across groups of various ages, cultural backgrounds, and gender or sexual identities," they added.

A 3D image depicting the 'ideal' breasts, made by morphing the five most attractive sets

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A 3D image depicting the 'ideal' breasts, made by morphing the five most attractive setsCredit: Aesthetic Characteristics of the Ideal Female Breast
The five patients with the highest average survey scores for 'breast attractiveness'

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The five patients with the highest average survey scores for 'breast attractiveness'Credit: Aesthetic Characteristics of the Ideal Female Breast
Photos of the patients' boobs in order of survey scores for 'breast attractiveness'

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Photos of the patients' boobs in order of survey scores for 'breast attractiveness'Credit: Aesthetic Characteristics of the Ideal Female Breast
Actress Blake Lively at the 2022 Met Gala

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Actress Blake Lively at the 2022 Met GalaCredit: Getty
Jennifer Aniston is understood to have C cup boobs

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Jennifer Aniston is understood to have C cup boobsCredit: Getty
Rita Ora, who has previously spoken about wearing the wrong size bra, at the 2023 Prince’s Trust Gala

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Rita Ora, who has previously spoken about wearing the wrong size bra, at the 2023 Prince’s Trust GalaCredit: Getty