The South African-born star recently married Liberty X beauty Jessica Taylor – but he prefers to score at the wicket than between the sheets, reports The Sun.
The big-hitting batsman, KP to his mates, said: "Centuries don"t come round very often whereas sex is on tap, isn"t it?"
But Pietersen admits he and Jessica, both 27, want a family – though they will plan a birth for when he is not touring.
"You never know how quickly or how long it will take. I don"t want a winter baby because I want to be around when it"s born," Pietersen a South African-born Hampshire cricketer said.
KP the Ronaldo of English cricket, who once dated model Caprice, claims he has ditched his playboy lifestyle.
He said: "Those were my testosterone days. Now, I love married life, staying in and cooking for Jess."