"Three Nuns" joke

Three nuns die and go to heaven. St. Peter is waiting for them at the gates of heaven and as they walk up he says "In order for you to get into heaven, you each have to answer one question." The nuns say ok and the first nun walks up.

St. Peter says "Who was the first man on Earth?"

The nun thinks for a little bit and finally says "that's easy, Adam." Bells ring, angels sing, doors fly open, nun walks in.

The second nun walks up and St. Peter says "Who was the first woman on Earth?"

The nun thinks for a little bit and says "That's easy, Eve." Bells ring, angels sing, doors fly open, nun walks in.

The third nun walks up and St. Peter says "Ok, what were the last words Eve said to Adam before Adam left the Garden of Eden?"

The nun, not having the slightest idea, thought for a long time and finally said "Boy, that's a hard one..."

Bells ring, angels sing, doors fly open, nun walks in.