A source tells ET that a woman recently came forward to the 49-year-old actor, claiming that he is the father of her unborn child. According to the source, Wilson has offered to undergo a paternity test.
Wilson already has two children. He's dad to 7-year-old son Robert, whom he shares with his ex-girlfriend, Jade Duell. He also shares 4-year-old son Finn with personal trainer Caroline Lindqvist.
"Sometimes it feels more like I'm already seeing how they're going to be as teenagers where they're sort of ganging up on me," Wilson playfully shared with DeGeneres.
"We went to Sequoia National Park and they have the biggest tree in the world. Ford's like, 'I've seen bigger.' I’m like, ‘Well, no, Ford, actually you haven't seen bigger, this is the biggest tree in the world. He's like, 'If you say so,'" he joked.
Wilson brought his two sons along to the Cars 3 premiere last June. Watch below.