“Missing my baby boy…” he wrote alongside the photo of the handsome father and son duo, which he shared on the picture-sharing site.
The ITV star was sporting a dark shirt and a big smile on his face as did the teenager sitting next to him.
Father-of-four Eamonn, who is also dad to Declan, Rebecca and Niall from his first marriage, went on to add: “As a matter of fact missing all my children, my Mum, my Brothers and everyone who I am close to.
“I’m sure u r the same,”(sic) he wrote in the heartfelt update, in view of his 690,000 followers.
“Was supposed to be there this weekend but safer not to,” Eamonn replied to the message, revealing he had cancelled a trip to Northern Ireland due to the ongoing coronavirus pandemic.
“He looks just like you Eamonn! Hopefully you can see them all very soon,” a second follower wrote in the comments section.
“Oh my goodness – spitting image!” said another fan in agreement.
“Two very handsome men. It’s so difficult at the moment isn’t it Eamonn hopefully it won’t be long before you can give that boy and big hug,” remarked a fourth fan.