The 23-year-old Argentina international has singled out the Real Madrid star as being his inspiration, explaining how he has modelled his game on the playmaker's
The former Palermo star says that he observed his fellow South American closely on TV and set out to emulate him.
"Kaka was always the player I idolized the most when I was a child," Pastore told the official website of the club which finished runner-up in France last season.
"I watched him play all the time in order to try and learn from him, to maximise my progress," he added.
Kaka has been constantly linked with a move to the French capital since the appointment of his former AC Milan boss Carlo Ancelotti as manager, though he remains a Real Madrid player for the time being.