Three nuns

Three nuns are in a hefty discussion about what it is that men have between their legs.

The first says: "I've been told that they have a hump of flesh there"

"No, no, no, that can't be" says the second, "My mother always told me they have a stick there"

"Ah, you are both ignorant", replies the third, "men definitely have a little bird down there"

One day brother Fransiscus is visiting from another monastery and the nuns decide to put their theories to the test. The first nun walks up, puts her hand under his habit and returns confidently to the other nuns: "it was definately a hump of flesh: it felt soft and warm".

The second nun doesn't believe a word of it, walks up to Fransiscus, puts her hand under his habit and returns with a big smile: "I knew it, I only felt a hard long stick down there"

The third thinks they're both lying and runs over to Fransiscus and puts her hand under his habit as well. She returns to the other nuns triumphantly. "It's certainly a bird, look: it shat right on my hand!"