West Brom striker Lukaku delighted with brace in victory over Sunderland
He said: "I don't feel pressure. People ask 'why did he cost that much' but that's just football.
"I am reading his book at the moment. I am a very big fan of his book.
"It is very good for a player my age because he went to a big club at the same age as me and I can learn from that."