The Chicken or the egg

A chicken goes to Las Vegas for a convention. After checking in, he goes down and plays some blackjack. He spots an egg across the room, their eyes meet and BOOM, their blood begins to boil.
They meet halfway across the floor and without a word, head upstairs to the chicken’s room, unlock the door and go at it madly on the bed. A couple of seconds later the chicken convulses, rolls off the egg and lights a cigarette.
The egg says “I guess we answered that old question!”.