The indecent acts related to when Fisher took the victim out to the garage while her brother was taking a bath. They played a game and Fisher placed the victim on a chair and pulled down her pants.
The victim told him to stop and that she did not like it. He also pulled down his own shorts to reveal his underwear.
Later, they bathed together for about an hour. Fisher played games with the girl.
Her brother came in at one point and saw Fisher performing an indecent act, and also his sister touching Fisher.
Fisher tried to appeal the sentence for those offences but Justice Joe Williams found Fisher's personal reflections downplayed the offending and he dismissed the appeal.
Mr Hard said Fisher was pleading guilty to the 48 charges at the earliest opportunity.
Judge Lynch remanded Fisher in custody to appear for sentencing in Wellington District Court on April 24.