EXCLUSIVE: Married At First Sight UK stars Ella Morgan and JJ Slater KISS behind the backs of their spouses and re-enter the E4 experiment as a couple

Married At First Sight UK stars Ella Morgan and JJ Slater kiss behind the backs of their spouses and re-enter the E4 experiment as a couple.

MailOnline revealed that the show's first transgender contestant Ella, 29, cheats on husband Nathanial Valentino, 36, with a groom that enters the series at a later date.

In scenes yet to air, Nathanial dramatically leaves the process, which sees couples marry after meeting for the first time at the altar, following the revelation that Ella and JJ, 30, had been unfaithful.

After being given permission by the show's relationship experts, Ella and JJ re-enter the series as a new couple, to the shock of their fellow co-stars.

It follows the end of JJ's marriage to wife Bianca Petronzi, 30, after she gave up on their romance when he failed to show her any interest. 

On screen: Ella is currently appearing on Channel 4 show Married At First Sight UK, with the reality star telling her story as a transgender woman on the programme

Married At First Sight UK stars Ella Morgan and JJ Slater kiss behind the backs of their spouses and re-enter the E4 experiment as a couple 

Drama: MailOnline revealed that the show's first transgender contestant Ella cheats on husband Nathanial Valentino with a groom that enters the series at a later date

MailOnline revealed that the show's first transgender contestant Ella cheats on husband Nathanial Valentino with a groom that enters the series at a later date 

Reality show: It comes after it emerged Married At First Sight UK stars Ella and JJ Slater kissed behind the backs of their spouses and re-entered the E4 experiment as a couple

Nathanial dramatically leaves the process, which sees couples marry after meeting for the first time at the altar, following the revelation that Ella and JJ had been unfaithful

A TV source told MailOnline: 'Ella and Nathanial tried to take their relationship to the next level but agreed they were better off as friends.

'Nathanial was so disappointed by Ella's actions, he thought they had a mutual respect for each other and kissing someone else in the process went against his values.

'Ella loved the attention she received from JJ because it's what she missed in her marriage to Nathanial.

'After initially leaving the show when their marriages failed, Ella and JJ were given permission by the relationship experts to come back, which certainly ruffled feathers among the cast who have taken the process seriously from the beginning.'

On Thursday night's show, sparks begin to fly between Ella and JJ, who both choose each other as the person they would like to kiss aside from their partner.

JJ has made it clear since marrying Bianca that she isn't his 'usual type', admitting during the show's latest commitment ceremony that he prefers 'girls that have had a lot of work done.'

The couple have not even kissed, including on their honeymoon with the clothing brand owner insisting he wanted to take a new approach on the show to his using dating style.

He said: 'My normal type is slightly different to Bianca... it's been like girls that have had a lot of work done and they kind of all look the same. In this experiment I wanted something deeper and more emotional.'

JJ has made it clear since marrying Bianca that she isn't his 'usual type', admitting during the show's latest commitment ceremony that he prefers 'girls that have had a lot of work done'

JJ has made it clear since marrying Bianca that she isn't his 'usual type', admitting during the show's latest commitment ceremony that he prefers 'girls that have had a lot of work done' 

On Thursday night's show, sparks begin to fly between Ella and JJ, who both choose each other as the person they would like to kiss aside from their partner

On Thursday night's show, sparks begin to fly between Ella and JJ, who both choose each other as the person they would like to kiss aside from their partner 

In Wednesday night's instalment, Terence Edwards quit the series and refused to give his wife Porscha Pernnelle a second chance of making their marriage work.

He opted out of the process after learning that Porscha had kissed four other men during a game of spin the bottle, which he classed as cheating and led to ruptures within the cast.

During one of the show's most explosive dinner parties, Porscha came to blows with co-star Georges Bert, with the pair even arguing in French, after he vocalised his views on her behaviour. 

It is the latest drama to hit the series after Nathanial claimed that he was forced into his partnership with Ella and said he eventually quit because he felt like he was being 'strangled.'

He told the Sunday Mirror: 'I felt I was being strangled and it brought out an ugly side of me. I knew I was going to tear the place down, so I quit.'

He also branded the producers 'manipulative', alleging his time on the show was a 'complete sham.'