A man accused of starting a fire which killed six of his children has told jurors he is "ashamed" of a threesome he and his wife had hours before.
Michael Philpott and co-accused Paul Mosley both had sex with Mairead Philpott on the evening of the blaze, Nottingham Crown Court heard.
Mr Philpott said: "It's something that shouldn't have happened".
Mr and Mrs Philpott and Mr Mosley all deny the manslaughter of the six children in Victory Road, Derby.
The trial heard Mr Philpott and Mr Mosley played snooker before Mrs Philpott and the pair had sex. Anthony Orchard QC, defending Philpott, asked him: "How do you feel about that now?"
"Ashamed," Philpott replied.
"How do you feel admitting it?" Mr Orchard continued.
"The same," Philpott replied.
The trial continues.