The 29-year-old Love Island star – who works in A&E – said it’s too risky as the global pandemic rages on.
Of course, there is a current lockdown in Britain that prohibits anyone leaving the house unless shopping for essential items, travelling to work (if you can’t work from home) and to exercise for up to an hour a day.
Quizzed by BBC’s Newsbeat on how COVID-19 affects someone’s sex life, Alex said: “If you’re in a relationship… living with that person, and sharing the same environment, it shouldn’t change your situation.
“However if one of you is displaying symptoms of coronavirus then you should maintain your social-distancing and isolate, even within your home.
“In an ideal world everyone would stay two metres apart – even in their own house, but we realise this may not be realistic.
“I certainly wouldn’t advise having new sexual partners at the moment, because the risk is you could pass on the virus.”
He added: “If you’ve kissed or been in contact with someone who you think has gone on to develop coronavirus, make sure you self-isolate.”
He also appeared on Sky News this morning, telling presenter Kay Burley he was shocked and upset by deaths from coronavirus during his A&E shift.
He had spent another late night treating sick patients with COVID-19 and sadly saw a number of patients die at his London hospital.
Alex, 29, was left emotionally drained by what he saw in his London hospital.
“Yesterday’s shift was a particularly busy one,” he told Sky’s Kay Burley.
“We had quite a few patients who were really quite unwell from coronavirus.
“Unfortunately, a few deaths as well which is always tough.”
Dr Alex – who found fame on Love Island in 2018 – praised his colleagues for running the operation and said they are coping under intense pressure.
He told his 1.3million followers last night: “It’s been a hard shift. Challenging emotionally. Time for bed. Night all.”
Currently, there have been 1,408 deaths in the UK but these numbers only include those who have died in hospital based on NHS figures, not deaths at home.
And they also only go up to March 20 – three days before strict lockdown measures were imposed by Boris Johnson to curb the spread of the disease.
At least 40 more people have died from coronavirus in the UK as hidden deaths at home were today revealed for the first time.