The pair are Portugal teammates and played together at Real Madrid.
On Ronaldo playing again in Portugal, Pepe told NOVO: "To be honest, knowing him as I know him, I don't know if he would put up with many people talking the way they talk about football in Portugal.
"I think he is happy in Turin. He is the top scorer in the Italian league, the people who criticise him do not know the effort it takes to score more than 30 goals every year. What he does is brutal .. I hope he stays there for another year, bringing joy to sports lovers and representing Portugal as well as he does."