The Powell family is full of hugs and kisses--thanks to a surgical procedure that helped Brad become a dad.

The Powell's believe Brad had a bilateral hernia as a child--the scaring then prevented the production of sperm.

"But I remember there were times of worry and times of scared and then times of thinking no way, there has to be something," Brad said.

His wife Heather said having kids was always the plan.

"When you get married you think you're going to have a family and then you might not have a family," Heather said.

But Dr. Kevin Doody--a reproductive endocrinologist at Baylor-All Saints Medical Center in Fort Worth had a life changing solution.

Biopsy Brad's testicles for hidden sperm.

"It turns out if the sperm production is very low we may not be able to detect any sperm at all in the semen, in the ejaculate," Dr. Doody said. "Yet by surgically doing biopsies into the testicle one can locate pockets of sperm production."

Amazingly, it can often work on men who survived childhood cancer and the therapies that can lead to sterility.

"The chemotherapy often times can nearly completely eliminate semen production such that there aren't any sperm," Dr. Doody said. "This is a good way to handle that."

The sperm is extracted and then the usual in vitro fertilization process takes place--for Brad and Heather it work like a charm--actually two charms--first Sara and then Samantha.

For Heather, it was the best solution.

"We're very fortunate because the option for us really would have been either a donor sperm or adoption," Heather said. "We're really fortunate we could both be a part of it."

Brad agreed.

"You hear a lot of stories, so for us to have gone through this and to have come out with this, our two girls, is great."

It's a story the Powell family will always kiss--and tell.

Especially on Father's Day.