Suddenly one of the monks notices that they forgot the soap. So he leaves the shower and runs to his room completely naked to grab some soap.
Once he's got the soap and is walking back he hears three nuns approaching.
Terrified that they might recognize him he freezes and pretends to be a statue.
When the nuns walk past him they are suprised by how life-like the statue looks. The first nun is so curious, she pulls on the monks penis.
The monk is completely suprised and drops one of the bars of soap
"Its a machine to get a bar of soap!" The second nun exclaims and also pulls the monks penis. And sure enough he drops the second bar.
But when the third nun pulls nothing happens so she tries again. This goes on for a while and the other two nuns get bored and start to walk away.
Suddenly the third nun shouts: "Hallelujah! It also has liquid soap!"