What's the meaning of 'give cleavage'?

I know both the meaning of give and cleavage, but I cannot understand some sentences including those. This is from an article about pregnancy.

Loving your new dewy, pregnant glow? Thank the hormones HCG and progesterone (they increase the number of oil glands in your face, making your complexion shinier and smoother) and your boosted blood volume, which can make your skin slightly flushed and plump. And if the girls are giving you all kinds of nice cleavage these days, it's because estrogen and progesterone are spurring milk-producing glands to grow there (and there's plenty more of that to come)!

Solution 1:

From Urban Dictionary

the girls
Affectionate term for a woman's breasts.

When a woman has large breasts, the cleavage between the breasts becomes much more noticeable and attractive. The quote is saying that you'll notice this improvement when you become pregnant, because of the hormones that promote breast growth.