This is an old joke, but still kinda funny

This is an old joke, but still kinda funny

A native child entered his parents tent. "How did we get our names?"

"Well" says the mother, " when your brother was conceived, we saw a deer running in front of us. So we named him running deer. We named your sister flying hawk, for the same reason."

Then, she turned her head.

"Why do you ask, Two Dogs Fucking?"