Peter took to Twitter to share a picture of him and Junior, captioning: ‘Like father like son.’
He then wrote in his blog: ‘It was great having J come with me to NYCC last weekend to meet some of you guys. He had a great time :))’
The tweet comes after ex-wife Katie posted a series of photos in Twitter showing her and Pete’s children Junior (8) and Princess (6) cuddling up to new hubby Kieran Hayler.
Katie shared the snaps with captions such as ‘gorgeous’ and ‘perfect.’
Peter admitted he suffered from a panic attack back in 2009 when he saw pictures of Kate’s ex-husband Alex Reid playing with Junior and Princess.
He wrote in his column after seeing the photos: ‘I found it unbelievably hard to see another man with Junior and Princess, and that was probably the lowest I've felt throughout the whole split.’
'Its any father's nightmare to see pictures like that and I went to bed feeling not only heartbroken but also massively anxious, which obviously brought on the attack.’
The tweet comes just a few days after Kate blasted Pete when she hadn’t heard from Junior or Princess in over 11 days.
Katie angrily tweeted: ‘disgusting,haven't heard from my children for 11 days no tex no missed calls no messages and people wonder why I don't have good word to say (sic).’