Why do big breasts attract the men all the time?

As a busty woman, I have realized that men start up a conversation with me faster than they do with my colleagues at work.
They seem to find something attractive about me that they can't keep to themselves.
Some even go as much as offering to buy me lunch when all I care about is them patronizing the company.

Apparently, having big female endowments isn't much of a blessing as it seems. There are a lot of problems I face that can't be shared most of the time.
This is because they are quite ridiculous.

Let me share some with you...

I have a 36 G and they look quite firm and admirable on the outside.
Do you know that I face a lot of trouble trying to buy new bras as most of the stores here in Nigeria don't plan for 'big' women?
On several occasions I have chest pain and the possibility of having a bent back if you don't get the right bra size.

Sometimes I feel embarrassed when I catch the glance of everyone looking at my boobs whenever I walk into a hall or go to a party.

Don't get me wrong, I am not ashamed of my body. I love it so much.
I would just love it if people knew how much busty women go through only to fine out some men just want to have sex with them for the sake of fantasy.

In my last job at a law firm, my male boss couldn't keep it to himself that he told me he just wanted to suck me up. I was so furious that a respected and married man would make such derogatory statement at me.
If I sued him, people would laugh at me so I had to quit the job. Now I work at a bank and its quite a funny experience.
Do you know some men could salivate when they see big boobs? Hahaha. It can only get funnier.
Some even get turned on while talking to you and when its time to stand up, its all stoned up and I begin to wonder if men no longer wore underwear.

So here goes my question...

Why do big breasts attract the men all the time?