Niall shares a very sweet picture of Theo

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Niall Horan is loving being able to spend lots of time with his adorable nephew Theo after returning home from One Direction‘s world tour.

The Irish singer, 20, uploaded a super-cute photo of Theo with his tiny head clad in a sideways adult-sized denim cap on Instagram yesterday.

‘Theo is a G!’ Niall captioned the snap.

Niall‘s older brother Greg and his wife Denise welcomed their son in September but he hasn’t been able to spend much time with the tot because of work.

Greg postponed Theo‘s baptism until Niall returned to his hometown of Mullingar earlier this month so he could fulfil his godfather duties.

Blond hottie Niall was shocked by how much Theo had grown since his last visit.

‘Last time i seen this little man he was 4 weeks old! He is the best baby ever,’ wrote Niall alongside a shot of him and Theo together. 

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Anna Duff