Sammy, 25, appeared at Portsmouth Crown Court today where he changed his plea to guilty, having previously pleaded not guilty.
Sammy first appeared in court in February last year, under allegations that he had scammed two elderly men by posing as a financial investor.
This morning, the court heard how the two men - aged 80 and 90 - were clients of a company where Sammy used to work, with the new dad taking them on as clients when the business closed.
However, it was then alleged that Sammy falsely claimed to both victims - Peter Martin, 90 and Peter Haynes, 80 - that he was authorised to provide financial services.
This morning, Sammy pleaded guilty to five counts of fraud, totalling £33,919.
In January, Dani and Sammy welcomed their first child together, Santiago.
"After a very long day and night finally our special little boy arrived 23/01/2021 weighing 7 [pounds]," Dani wrote at the time.
"We are in a complete baby bubble and enjoying every moment, can not believe he is ours, completely in love and so grateful to be his mummy. Sending all my love to all the other mommas to be out there in lockdown... the best experience ever will never forget this day."
Speaking about Santiago's name, Dani shared why they chose the cute moniker.
"My mum is half-Spanish and she said the name to me a few times. Then I see it on a programme and I fell in love with it. Love that it's really unusual and really doesn't bother me when people say they don't like it," she said.
Dani rekindled her romance with ex-boyfriend Sammy after splitting with Jack Fincham, who she met on the fourth season of Love Island.
The former couple won the 2018 series and went on to star in their own reality show before going separate ways.