A couple of farmers will go shopping

A couple of farmers will go shopping in town.
Passing in front of a lingerie shop, the woman says:
I bought a little panties
The husband answers:
You will not find
The woman asks:
Why?
And the husband:
Ben with the ass of combine harvester that you have, you will not find your size.
The woman enters the shop and comes out without panties.
A little further, new lingerie shop, the woman said:
I bought a little panties!
The husband answers:
Not looking, you will not find with your big ass of combine harvester.
The woman comes out of the shop without panties.
At the third shop, same scenario the woman says:
I’ll see if in this one I find a little panties.
And the husband:
Do not insist, you always have your big ass of combine harvester.
The woman is disappointed without panties and decides to stop her research.
In the evening, the couple goes to bed and the husband curls up near his wife and asks him:
I would like a big hug and even more!
The woman:
NO!
The husband surprised at this refusal asks:
Why?
And the woman answers:
You do not believe that I’m going to start my combine harvester for a small straw.