A wee joke

A family is at the dinner table.
The son asks his father, "Dad, how many kinds of bo obs are there?"

The father, surprised, answers, "Well, son, there are three kinds of
bo obs. In her 20s, a woman's are like melons, round and firm. In her
30s to 40s, they are like pears, still nice but hanging a bit. After
50, they are like onions."

"Onions?"

"Yes, you see them and they make you cry."

This infuriated his wife and daughter, so the daughter said, "Mum,
how many kinds of "willies" are there?"

The mother, surprised, smiled and answerd, "Well, dear, a man goes
through three phases. In his 20's, his willy is like an oak tree,
mighty and hard. In his 30s and 40s, it is like a birch, flexible but
reliable. After his 50s, it is like a Christmas tree."

"A Christmas tree?"

"Yes. The tree is dead, and the balls are just for decoration."