The pair played together at PSG.
Aurier told SFR Sport: "Lucas? I'm happy to receive him here. We had discussed a lot before his arrival. I reassured him. I think he made the right decision.
"He had other possibilities, but I think it was the best choice for him, to progress, for the rest of his career. I think he was looking for pleasure. He fell into the right team because it's a group that lives well.
"He made the right choice. I hope we will put everything in place so that he adapts as quickly as possible."