By Vanessa Papas An A cup breast weighs on average 236.3 grams, roughly equivalent to the size of an adult hamster.
On the far end of the spectrum is a KK cup breast, (yes they exist), which weighs on average 2.2kg, roughly equivalent to the weight of a well-fed duck.
Now image having to lug not one but two ducks around on your chest all day, every day! Welcome to the world of Instagram model Anastasiya Berthier.
The sexy Russian from Moscow says she owes Mother Nature for her twin peaks and refutes any suggestions that she has had plastic surgery to enhance her cleavage.