(Cover) - EN Showbiz - James Van Der Beek is keen for more kids because looking after his baby daughter is so much fun.

The American star is father to five-month-old Olivia with his wife Kimberly Brook. He has been open about how much he is enjoying fatherhood, telling his Twitter followers he was in danger of becoming someone who could only talk about his child because he was so in love with her.

The 34-year-old still cant believe how much becoming a parent has changed him, and is already looking forward to giving Olivia a sibling.

Shes got two tiny little front teeth. Shes hyper aware, shes just fun, its fun every day, he said. Were hoping [for more].

Kimberly isnt getting much sleep at the moment, as Olivia needs feeding throughout the night. James does all he can to help though, often getting up to soothe the tot when she is crying or wants a cuddle.

She is constantly amazed by how much her daughter is changing, explaining she cant believe she now moves around rooms on her own.

Shes scooting herself now all around the house, Kimberly laughed to the American edition of OK! magazine. Well put her somewhere and then shell be on the other end of the room because shes rolled there or scooted there. (C) Cover Media