Barni, a 2-year-old rescue dog, has a bit of a habit of taking toys away from other dogs and taking them home - but he had never turned up at home with an X-rated toy before.
O'Connor posted on the local Facebook group about his dog's beach bounty and his post had more than 1,600 reactions in just three hours and hundreds of people commenting.
People found it hilarious that the canine had found such a toy on the beach and many jokingly tagged their friends asking if they'd lost anything.
"I'm glad a dog found it and not a child," one person commented.
"That won't be going in the toy library," someone else said.
O'Connor, who's been in hospital for the last day since welcoming the couple's baby girl, is not sure what happened to the sex toy but - finders, keepers - he says if Barni took it home, he gets to keep it.