Kevin Federline’s ex Shar Jackson has asserted that Britney shouldn’t be surprised by her husbands fathering skills - of leaving her mending baby nappies while he goes out partying.

Shar - who has two children, Kori and Kaleb with Kevin - says Britney should have seen it coming, following reports that Britney’s been upset that Kev’s been boozing with his mates while she’s playing the doting mother.

The ‘Moesha’ actress, who was pregnant with Kaleb when Kevin left her for Britney told America’s US weekly magazine, “C’mon, kiddo, did you think things were going to be different.” Before adding, “Kevin was there for Kori every single day of her life until I told him to go out and get a job.”

Last week, Britney was said to be upset that Kevin is not spending enough time helping her with their baby son, Sean Preston. Insiders claimed she was particularly annoyed when her husband spent two hours having his hair braided, while she was left to change the baby’s nappies.

Kevin has also reportedly been shunning his fatherly duties by partying till the early hours at nightclubs. An onlooker revealed, “He seemed kind of out of it. Everyone was like, ‘Go home to your family. Isn’t it a bit soon to be out partying?’”