Beer gets spilt, sometimes the odd glass of wine... but bosoms?
Surely not.
However, we frequently see celebrities of the female variety with their hoo-hoos pouring out over the top of dresses etc.
Whilst a cracking cleavage is magnificient and should always be admired, boob seepage is another matter.
In fact, it reeks ever so slightly of something being a little ill-fitting.
Corsets are the worst offenders for displaying a double bosom - as are bras that are too small.
So who is this Hollywood A-lister pouring out over the top of her corsetted dress?
Well, it's the very demure Katie Holmes.
It has to be said, we're a little disappointed... because this lass used to be super stylish.
On the other hand, she did give birth earlier this year, so perhaps she has better things to worry about now than how her breasts come across.
See all (well, not quite) in the gallery above.
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