To one, she is daddy's little girl. To the other, she's a cherished wife.

But their mutual love of her isn't the only thing that unites a father-in-law and son-in-law.

These three Bay Area pairs represent male bonding at its finest. Since marriage united their families, they have spent quality time together -- playing golf, repairing a roof, waiting for the fish to bite -- and discovered somewhere along the way that they were the best of friends.

"Men's relationships are based on doing things," explains Deanna Brann, a Tennessee-based clinical psychotherapist and in-law relationship expert. "It's not so much about the instant emotional connection as it is with women. That comes later, as they build trust and respect."

Bill Schlough, left, from Redwood City, holding his son Xavier, 2, stands next to his father-in-law Jerry Kinoshita, from Los Altos, at the Stanford Golf
Bill Schlough, left, from Redwood City, holding his son Xavier, 2, stands next to his father-in-law Jerry Kinoshita, from Los Altos, at the Stanford Golf Course driving range, June 5, 2013. (Nhat V. Meyer/Bay Area News Group)

When their relationship thrives, it sends a positive message to the entire family.

"As married couples, we sometimes forget we are not distinct and separate entities," Brann says. "We are part of something bigger. In order for the system we are creating through blending our families to thrive, grow and be sustainable, everyone needs to step up and demonstrate what is possible."

In honor of Father's Day, here are their stories.

Bill Schlough and Jerry Kinoshita

There are many reasons Bill Schlough admires his father-in-law, Jerry Kinoshita, or Dr. K.

He is selfless, caring and, at 71, he can kick Schlough's you-know-what on the tennis court.

"He is my role model and my mentor," says Schlough, 43, of Redwood City. "He is who I want to be when I grow up."

Schlough met Erin, Kinoshita's daughter, in 1993. The men bonded over a love for golf, skiing and travel. By the time Schlough wed Erin in 1998, he counted her father among his best friends.

"He was cool from the start," Schlough says. Kinoshita says the same thing about his son-in-law.

"I could tell right off the bat that Bill was a positive, gentle, fun guy to be around," says Kinoshita, of Los Altos. "When a father gives his daughter away, it's a happy moment but a scary moment, too, because you want someone who is going to be supportive. I knew he was that guy."

Two years ago, when Kinoshita lost his wife after her long battle with breast cancer, it was Schlough that he turned to for support. Mrs. K, a big sports fan, had always wanted to watch the San Francisco Giants play a few innings at spring training in Arizona. This past March, Dr. K asked Schlough to commemorate the two-year anniversary of her death with a boys' trip to the exhibition games.

Darryl Murray, left, of Pinole, and his son-in-law, Shane Herbert, of Hercules, pose for a picture together at Shane’s home where the two have done
Darryl Murray, left, of Pinole, and his son-in-law, Shane Herbert, of Hercules, pose for a picture together at Shane's home where the two have done some home improvements together in Hercules, June 7, 2013. (Dan Rosenstrauch/Bay Area News Group)

"I was so humbled that he chose me to accompany him on such an emotional trip," Schlough says. "I consider myself incredibly fortunate to have Dr. K as a part of my family. He is so much more than a father-in-law to me."

Shane Herbert and Darryl Murray

Shane Herbert asked Darryl Murray for his daughter's hand in marriage in 2005. Murray's response? "Yeah, I'll think about it."

Murray knew deep down that Herbert was a good man who would make Jessica happy, but he wanted to let the young man with "immature" tendencies "sweat" for a while.

"I was a little hesitant to let my daughter go," Murray, now 64, admits. "But I also knew that he would mature and turn out OK." A few days later, while the men were on the roof of Murray's San Pablo home installing a fan, Murray gave Herbert his blessing.

Today, the men are as close as brothers, says Murray, who brings his son-in-law on weeklong fishing trips with his 60-something buddies. He says he's glad he trusted his long-term instincts about Shane. "He is very sensible, very thoughtful, and has a real emotion for people who are close to him. I just love being around him."

Herbert, now 27, feels the same way about his father-in-law. "I've learned so much from him, and I love that he always makes time for me," he says. Over the years, the men have worked on countless home improvement projects, from painting the Herberts' Hercules home to installing its sprinkler system.

"If I could take his brain for half the knowledge he has in construction, in life, in everything, I'd be set," Herbert says. "He puts the Lord first in everything, and I hope I can do that in my life, too."

Chia Kok Leong (L) and his son-in-law, Enoch Choi, are currently traveling in Cambodia together.
Chia Kok Leong (L) and his son-in-law, Enoch Choi, are currently traveling in Cambodia together. (Courtesy of Enoch Choi)

Enoch Choi and Kok-Leong Chia

They live more than 8,000 miles apart, but Enoch Choi, of Palo Alto, and Kok-Leong Chia, of Singapore, are neighbors in spirit.

Ever since Choi married Chia's daughter, Tania, 18 years ago, the men have enjoyed an enriching friendship based on a mutual love of Singaporean food, Kung Fu epics and, most importantly, a desire to save the world.

"We both believe that people in Third World countries are just as intelligent as those of us born in developed countries," says Chia, 69. "We want to level the playing field, especially when we realized that the price of a parking ticket can pay for their food for a week."

Currently, they are in Cambodia together on a mission trip providing free medical aid and other volunteer services to the needy. Most of the time, they communicate via FaceTime. Chia tries to visit two to three months out of the year.

"Enoch is a fun fellow to travel with and is a very giving person with a great verve for life," Chia says. Choi calls Chia "an awesome force" in his life.

"He's a sweet, warm, supportive presence," says Choi, 43. "He had faith in me to leave my medical practice to pursue startup work. And he's a friend, no matter how well Tania and I are getting along."

To Chia, he has become more than a friend.

"We bonded well because I've treated him like a son I never had," he says.