Tarzan Joke

Tarzan and Jane are walking in the Jungle when suddenly Tarzan notices a boat being attacked by a crocodile. Tarzan runs to the river, jumps into the water and wrestles the crocodile until it lets go of the boat.
Unfortunately, in the struggle Tarzan Loin cloth is ripped off. When he leaves the water Jane sees his 20-inch penis.
“Why Tarzan your penis!” she exclaims.
Seeing the shock on Jane’s face Tarzan replies, “Jane no worry. It always shrinks in cold water.”