He posted a photo of Andréa with her two children sitting in between her legs so you could see the difference in size between Amelia, three, and Theo, nine months.
“Oh look how small Theo is compared to Amelia,” one person wrote. “So cute.”
Another commented: “Looks like you’re having great family time. Sweet pic Peter.”
“Think you should have sat in that photo too,” commented another. “That would have been one photo for the wall in the Andre house.”
Andre has previously spoken about having more kids with Andréa.
“After having Amelia, we said we wanted at least one more,” he told OK! Magazine. “But now that we’ve got Theo our family feels complete.
“But you never know what might happen!”
He is also dad to Princess, 10, and Junior, 12, with Katie Price.