And the movie star spoke out about their 39-year age difference, in an interview with People Magazine.
Dennis said: 'It really just doesn't come up. There's just something timeless about us. We're partners in our relationship and in life. It's love. And love just has a way of surprising you.'
Laura said she finds strength in Dennis' maturity: 'Like the wisdom that Dennis has. We both had to go through things to be who we are now and who we are now was ready for each other.'
Dennis said their shared faith has also played a part in the relationship: 'We're both Christians, and right from the start God has always had a hand in the relationship.'
Adding that: 'I think that's where the real strength comes from.'
The duo hope to go on a honeymoon in the next month or so and plan on having a reception with friends and family 'when the time is right,' Dennis said.
Dennis, who hosts his podcast The Dennissance, said of Laura: 'She's the greatest person I ever met. I love waking up and spending every day with her.'
He said he most looks forward to 'just sharing our lives together.'
The actor tied the knot with Laura after they eloped to a seaside resort in Santa Barbara on June 2.
The lovebirds only had their pastor as their witness, according to People.
The actor, who has previously been married three times, said: 'Love just has a way of surprising you.'
The duo had planned to tie the knot with a wedding in Hawaii in April, followed up by a second reception in Nashville for their friends and family - but had to postpone them due to the COVID-19 pandemic.
Dennis called their private nuptials as 'beautiful;' they exchanged traditional vows and Bulgari rings, according to the magazine.
The actor said: 'It was about us. It was beautiful,' adding 'we're really glad we did [eloping].'
Laura was moved by the officiant's message 'Of what it really means to bring your lives together,' which she told People means 'to put another person before yourself.'
She is currently working on her Ph.D. in accounting; Laura, who hails from St. Louis, was class valedictorian at Pepperdine University; she then got her Master's degree in Accountancy at the University of Notre Dame.
'Just looking into her eyes, she was the most stunning bride,' The Parent Trap actor said.
Laura wore a dress by Chosen By One Day, which was a white, low back silky gown, adding a veil on her loosely curled blonde tresses.
She carried a bouquet of calla lilies and roses designed by S.R. Hogue & Co. florist with Dennis wearing a gray Hugo Boss suit with a white shirt and no tie.
She was seen wearing her engagement ring and wedding band on Saturday - almost three weeks after the secret nuptials - when she and Dennis hosted an outdoor party for their Brentwood neighbors; Dennis had sung at the get-together.
Dennis and Laura, a doctoral student, met at a business event and started dating in May 2019.
He called meeting her 'love at first sight.'
In October 2019, five months after they began dating, the lovebirds got engaged.
'I just love who she is as a person. Her character, her intelligence, of course her beauty. And her point of view of the world,' Dennis said.
On her husband, Laura said: 'Just getting to do life with someone who lives that way is inspiring for me. It changes my perspective and it brings so much joy to every day,' adding that she's 'never met someone who is so in love with life. It's like nothing can bring him down.'
Dennis has been previously married three times and has three children.
He married actress P.J. Soles on November 25, 1978 when he was 24 and she was 28, but the duo divorced in early 1983.
He said I do's again on February 14, 1991 to actress Meg Ryan after they fell in love shooting D.O.A., their second film together.
They welcomed son Jack Henry Quaid on April 24, 1992.
Dennis and Meg announced their separation on June 28, 2000 after they were separated for six weeks; their divorce was finalized July 16, 2001.
Dennis married for the third time to Texas real estate agent Kimberly Buffington on July 4, 2004 at his Paradise Valley, Montana ranch.
They welcomed fraternal twins Zoe Grace and Thomas Boone, now 12.
Kimberly filed for divorce in March 2012 but withdrew them one month later; afterwards, they moved to California from Texas in summer 2012.
In October 2012, they decided to separate and Kimberly filed for legal separation; he filed in November 2012 - but they reconciled and their divorce was dismissed.
They announced their split on June 28, 2016 in a statement with Kimberly requesting joint legal custody and full physical custody; the divorce was finalized April 27, 2018.
Following his split from Kimberly, he briefly dated model Santa Azuina.
© Associated Newspapers Ltd.