As a poetic form, the haiku can be very adaptable. Here's a sampling of haiku involving boobs. Or, would these be more properly termed senryū?
They're perky, small bounce
I think they are looking great.
Don't say otherwise.
Why didn't you grow
When everyone else's did?
But that's cool, boobs.
They all lied to me.
Everyone said they'd come
But they never did.
Now here are my boobs
There are only two of them
And I don't need more.
They are nice and small
So I can let them be free
When the weather warms.
The girls are not big
Yes, I am post pubescent.
My butt is nice too.
Bra in the dryer
Warped, twisted underwires
Boobies lopsided.
Oh yes, I have boobs.
Don't really think about them
Unless I'm jogging.
Cop pulls me over.
Show him a little cleavage
"Have a nice day ma'am"
My girls are quite large
Wish I could wear a v-neck
And not look "slutty"
Mine are fairly small
But at least they are perky.
My butt is curvy.
My boobs are quite cute
They don't hurt me when I run
They're only A cups.
Evening dalliance.
But why is your hand in there?
Not quite now, Big Boy.
Are they real, you ask?
Yes, and they jiggle well too.
No, you can't touch them.
School uniform blouse
My only clean bra is red.
This may not work well.