Grass Sandwich

At a local college dance, a guy from America asked the girl from Sweden to dance.
While they were dancing, he gives her a little squeeze, and says, “In America, we call this a hug”.
She replies, “Yaah, in Sweden, we call it a hug too.”
A little later, he gives her a peck on the cheek, and says, “In America, we call this a kiss”.
She replies, “Yaah, in Sweden, we call it a kiss too.”
Towards the end of the night, and a lot of drinks later, he takes her out on the campus lawn, and proceeds to have s*x with her, and says, “In America, we call this a grass sandwich”.
She says, “Yaaah in Sweden, we call it a grass sandwich too, but we usually put more meat in it.”

A Very Faithful Woman

How were people born?