Answer:
Not really Naughty but...
"3 nuns die and go to heaven. At the gate Peter says 'you each have to answer a question' he turns to the first nun and say: 'who was the first man?' she says 'Adam' he replys 'yep ur in'. He turns to the second and asks: 'where did Adam live?' she replies: 'Garden of Eden' ...'yep ur in'. He turns to the third nun, who was the head nun and says: 'this question is going to need to be slightly harder because ur the head nun... What did eve say when she first saw Adam?' the nun say: 'hmm thats a hard one'... 'yep ur in'
A bit long, but i find it funny