The Prime Minister joked about the infamous "selfie" he featured in alongside US President Obama and Danish Prime Minister Helle Thorning-Schmidt today.
During Prime Minister's Questions, MP Martin Horwood referred to the photo - which has been widely covered in the international press - in a question about roaming charges.
The Prime Minister said it was "only polite" to oblige a request from a "member of the Kinnock family" - referring to the fact that the Danish leader is daughter-in-law to the former Labour politician Neil Kinnock.
More top news
The Prime Minister has created a taskforce and boosted the amount of money available to tackle 'barbaric' modern slavery.
Harry Potter and the Cursed Child will be released around the world at midnight.
The popular HBO TV show will finish after its eighth season, the network said.