VIDEO : Ryan Reynolds Is Ready for Fatherhood: 'I'm Good With Diapers, Diarrhea and All That Kind of

Ryan Reynolds is gearing up for the most important role of his life: fatherhood.The actor and his wife, Blake Lively, are currently expecting their first child together. The former Gossip Girl actress, 27, announced her pregnancy in October via Preserve, her lifestyle and e-commerce website. Reynolds is ready to tackle diaper duty, saying, "I don't have a weak stomach. I'm good with diapers, diarrhea and all that kind of stuff because I have lots of nieces and nephews, so I've done it all before." The Canadian actor is the youngest of four brothers.