Two foreign immigrants have just arrived in the United States

Two foreign immigrants have just arrived in the United States 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 America, we might as well do as the Americans do.”
Nodding emphatically, one of the immigrants points to a hot dog vendor and they both walk toward the cart.
“Two dogs, please,” she says.
The vendor is only too pleased to oblige, wraps both hot dogs in foil and hands them over the counter.
Excited, the companions hurry to a bench and begin to unwrap their “dogs.”
One of them opens the foil and begins to blush.
Staring at it for a moment, she turns to her friend and whispers cautiously, “What part did you get?”