Two Irish Nuns

Two Irish nuns have just arrived in Canada by boat and one says to the other, "I hear that the people of this country actually eat dogs."
"Odd," her companion replies, "but if we shall live in Canada , we might as well do as the Canadians do."
As they sit, they hear a push cart vendor yell "Get your dogs here" and they both walk towards the hot dog cart.
"Two dogs, please! ," says one.
The vendor is very pleased to oblige, wraps both hot dogs in foil and hands them over.
Excited, the nuns hurry to a bench and begin to unwrap their 'dogs'.
The mother superior is first to open hers. She begins to blush and then, staring at it for a moment, leans to the other Nun and whispers cautiously.
"What part did you get"?