King was released from Prison on Thursday, having has been place on the Sex Offenders Register and appeared on Sky Sports News on Friday, claiming he was a changed man.
"I have had a conversation with him. I spoke to him on Friday, just to say I thought that the interview that appeared on Sky was humbling. He made his mistakes and has came out and said that," said Aidy Boothroyd to the CT.
"I think it is important whether it is Marlon King or anyone else - and I have always said this - that people deserve a second chance.
"He has got a story to tell and he obviously wants to tell that story and as he puts it, things might not be as clear cut as perhaps what have been made, and you have to respect an individual's right to want to speak. But I thought the way he came across was terrific and I just phoned him to say that.
"There is nothing more in it than that. It is all about Portsmouth for us now and for Marlon it is about getting himself back with his family, his wife and his kids and, I guess, re-establishing himself in football will come at a later date because I think family will probably come first for him now."