The 35-year-old is alleged to have conspired with another woman to rape a one-year-old girl, Cardiff magistrates heard.
He also stands accused of two incidents of conspiring to engage in sexual touching with two young children.
The conspiracy charges related to a period between May 1 and Monday, while the indecent images related to a period between August 12 and Monday.
More top news
A Mercedes driver whose vehicle toppled six feet into somebody's basement has been arrested on suspicion of drink driving.
A delayed thaw with the cold air
An "urgent" review is being carried out by police after a rape prosecution collapsed when vital evidence was revealed at the last minute.