Rod Stewart and Penny Lancaster discuss the undergoing of IVF for their youngest Aiden, 7

They have been happily married since 2007, but Rod Stewart was red-faced on Friday's Loose Women when asked about Penny Lancaster's cheating.

Rod, 73, played a throwback video of Penny, 47, when she spoke when she first started dating the crooner, but found a picture of him with another woman.

Penny said: "He was trying to tell me that it was his daughter's friends, but I knew that it was not and gave him an ultimatum there.

Fingers in the ears: Rod Stewart, 73, faced Loose Women on Friday with red faces when the panel asked him about the time he cheated Penny Lancaster, 47, 20 years ago

Frankly, Rod, 73, played a throwback video from Penny, 47, when she talked about when she was dating the crooner for the first time, but she found a picture of him with another woman

Frankly, Rod, 73, played a throwback video from Penny, 47, when she talked about when she was dating the crooner for the first time, but she found a picture of him with another woman

Fingers in the ears: Rod Stewart, 73, faced Loose Women on Friday with red faces when the panel asked him about the time he cheated Penny Lancaster, 47, 20 years ago

Something to say: the couple also spoke about undergoing IVF for their youngest, Aiden, seven

Something to say: the couple also spoke about undergoing IVF for their youngest, Aiden, seven

Something to say: the couple also spoke about undergoing IVF for their youngest, Aiden, seven

Add: & # 39; I told him that I do not want to be a girlfriend. I want to be THE girlfriend. & # 39;

Rod said: "Since then, she has been under my thumb. There was exactly that one abuse and we've been together ever since. & # 39;

The couple seemed inseparable at the show, where they also talked about undergoing IVF for their youngest, Aiden, seven.

The British rocker – who in total is a proud father of eight children – also admitted that it was great to have children of all ages, because it is a "child of heart & # 39; loved.

Speaking of his two youngest he shares with Penny, Rod gushed: "They're all cute, the seven and twelve-year-old really take up a lot of my time – that's why I have my injured foot! & # 39;

When he worshiped his full brood, he admitted: "They are of different ages, all the way from the 1920s to the 30s. It also keeps me a child in the heart. & # 39;

The chemistry of Rod and Penny is hard to avoid during the interview and the musician was clearly beaten when he admitted: "I swore I would never marry again, but it is irresistible."

And talking about their IVF trip to become their youngest, Rod said about the process: "We just wait for someone to go up and we said, "Look at this – he's swimming there!"

Doctor daddy: Speaking of his two youngest he shares with Penny, Rod gushed: "They're all cute, the seven and twelve years old really take up a lot of my time."

Doctor daddy: Speaking of his two youngest he shares with Penny, Rod gushed: "They're all cute, the seven and twelve years old really take up a lot of my time."

Doctor daddy: Speaking of his two youngest he shares with Penny, Rod gushed: "They're all cute, the seven and twelve years old really take up a lot of my time."

& # 39; It comes through them! & # 39; Rod admitted that the reason why he had a wounded foot was due to his two youngest

& # 39; It comes through them! & # 39; Rod admitted that the reason why he had a wounded foot was due to his two youngest

& # 39; It comes through them! & # 39; Rod admitted that the reason why he had a wounded foot was due to his two youngest

<! –

Happy families: Rod and Penny are devoted parents of Alistair, 12 and Aiden, seven

Happy families: Rod and Penny are devoted parents of Alistair, 12 and Aiden, seven

Happy families: Rod and Penny are devoted parents of Alistair, 12 and Aiden, seven

We have that one sperm and that one sperm turned out to be our little son Aiden! & # 39;

Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show.

Penny looked sensational when she dressed her stately figure in a blouse with animal print.

Rod has fathered four daughters, including model and socialite Kimberly Stewart, 39, who was born during the wedding of the singer 1979-1984 with Alana.

Model ex-Kelly Emberg shares Ruby, 31, with the Do Ya Think I & # 39; m Sexy hitmaker.

Renee, 26, was born with his second wife Rachel Hunter, whom he divorced in 2006 after six years of marriage.

& # 39; That one semen turned out to be our little son Aiden! & # 39; Rod spoke at length about their IVF trip to think of their youngest

& # 39; That one semen turned out to be our little son Aiden! & # 39; Rod spoke at length about their IVF trip to think of their youngest

& # 39; That one semen turned out to be our little son Aiden! & # 39; Rod spoke at length about their IVF trip to think of their youngest

& # 39; This is irresistible & # 39 ;: the chemistry of Rod and Penny is hard to avoid during the interview and the musician was clearly beaten

& # 39; This is irresistible & # 39 ;: the chemistry of Rod and Penny is hard to avoid during the interview and the musician was clearly beaten

& # 39; This is irresistible & # 39 ;: the chemistry of Rod and Penny is hard to avoid during the interview and the musician was clearly beaten

Secret? The married couple hilariously whispered things in each other's ears

Secret? The married couple hilariously whispered things in each other's ears

Secret? The married couple hilariously whispered things in each other's ears

Secret? The married couple hilariously whispered things in each other's ears

Secret? The married couple hilariously whispered things in each other's ears

Rod & # 39; s first child – Sarah Streeter, 55, of his romance with the then art student Susannah Boffey – was given up for adoption after he had conceived her at the age of 18.

Meanwhile, the Scottish star, which recently appeared on The One Show, appeared about a recent leg injury and explained that the brace is only a precautionary measure & # 39; used to be.

Rod revealed: foot injury. I was kicking, I bought the boys an AstroTurf pitch because I do not play much anymore.

& # 39; But we played the other day and I ran into the nettles to catch the ball and step onto a big, big lump of concrete and this is what happened. It is only a precaution and it will be good in a few days. & # 39;

Silver fox: Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show

Silver fox: Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show

Silver fox: Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show

Silver fox: Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show

Silver fox: Rod looked handsome in a snazzy black suit and a white shirt with a splashing appearance for his performance on the show

Wild thing: Penny looked sensational when she dressed her stately figure in a blouse with animal print

Wild thing: Penny looked sensational when she dressed her stately figure in a blouse with animal print

Wild thing: Penny looked sensational when she dressed her stately figure in a blouse with animal print

Glamorous: she added a pop of color by combining her blouse with a shiny red mini skirt

Glamorous: she added a pop of color by combining her blouse with a shiny red mini skirt

Glamorous: she added a pop of color by combining her blouse with a shiny red mini skirt

.