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.
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Nearly 38,000 runners will hope to complete Sunday's London Marathon making it the biggest event in its 35-year history.
Rain across central Britain with longer, intense downpours with thunder in places this evening. A lucky few will stay sunny and dry.
Planning on going to the London Marathon tomorrow? Read our handy guide first!