A new season of the abc family hit, "baby daddy" is on the way. Think of "3 men and a baby" for the 20-something set. Cam mathison wept behind the scenes. There's a baby on my door mat. Reporter: Abc... See More
A new season of the abc family hit, "baby daddy" is on the way. Think of "3 men and a baby" for the 20-something set. Cam mathison wept behind the scenes. There's a baby on my door mat. Reporter: Abc family's hit show, "baby daddy" is the number one comedy series in abc family's history. A bar tender from new york turns his life upside down when e comes to find baby girl on the doorstep from an ex-girlfriend. Now back for a third season, it's a perfect blend of limitless laughs and love. It's okay. Daddy's here. Reporter: What sit like working with a baby on set. You have gone through three sets of twins. It keeps you on your toes. Reporter: Sometimes art imitates life. So many things we are done on the weekends have ended up in the scripts. Reporter: Really? Specific examples? The fanle season one where ben ends up in bed with the bride, which is a prank, i actually did to a friend in vegas. Reporter: And what can fans expect this upcoming season? We all get naked at least one time. Reporter: You can't say something like that and leave it hanging. Watch the first episode. Reporter: And now with three seasons under their belts, i thought it might the fun to test their parenting skills. Now we're going to do it. Guys versus girls. Most kids enter kindergarten at age what? 5 is normal. Reporter:1-0 for the ladies. Most kids first words are? I don't know. Mama and da da. Reporter: What is the first sense a baby develops. The sound. Listening. Hearing. Reporter: Yes. Guys team won. I couldn't leave without meeting the real stars of the show. Hello. Hi, how you doing, harper? Good? Do you thing I can get an autograph? I'll let you go. You're busy preparing. Getting if character. I understand. Which one of you is working today? You. For "good morning america," cameron mathison, abc news, los angeles. Thank you to cam for that. The winter premier of "baby daddy" airs wednesday at 8 clp
This transcript has been automatically generated and may not be 100% accurate.