Anvari.org

A Nun Is Undressing For A Bath And While She's Standing Naked There's A Knock At The Door.

A nun is undressing for a bath and while she's standing naked
there's a knock at the door.
The nun calls: "Who is it?"
a voice answers: "A blind man".
The nun decides to get a thrill by having the blind man in
the room while she's naked so she lets him in.
The man walks in, looks straight at the nun and says:
"Corrrrrrrrrrrr, and can I sell you a blind dearie...?"

Related:

Retrieved from http://www.anvari.org/shortjoke/Nuns/165_a-nun-is-undressing-for-a-bath-and-while-shes-standing-naked-theres-a-knock-at-the-door.html