CASPER, Wyo. (AP) _ Grandparenthood can be exhausting at times. Just ask Mike and Darleen Smith, whose daughter, Becky Smith, and daughter-in-law, Nancy Smith, both gave birth at the Wyoming Medical Center on the same day.

On Monday, Becky gave birth to a girl, Kailynn Adele, who weighed in at 5 pounds, 2 ounces. Nancy gave birth to a boy, David Michael, who edged out his cousin, weighing 5 pounds, 4 ounces.

Nancy Smith and her husband, Brian, knew David was coming on Monday because the birth was a planned Cesarean section. Becky, on the other hand, had spent Sunday evening at a lake and was planning on coming home to watch a video when she went into labor.

Grandmother Darleen Smith finds the whole experience ``exhausting.''

``But two at once is pretty exciting. I planned on getting to the hospital early that morning. I didn't know I'd be there sooner and up all night,'' she said.

The women, who had rooms next to each other in the hospital, were delighted to give birth on the same day.

``We could go back and forth and talk whenever we wanted to,'' Becky said. ``It was nice to have constant company.''

Grandpa Mike Smith also found it convenient to have them together in the hospital. ``I could see one grandchild and then run over to see the other one,'' he said.

Both babies are doing fine. Becky and Kailynn were discharged from the hospital on Tuesday, and Nancy and David came home Wednesday.