The couple, who have been dating each other for a couple of months, continues to get more and more serious in relationship with each passing day, reported Sun online.
"John thinks it is easier to stay in hotels rather than his own LA pad. But Katy insists he should stay with her. She thinks it makes sense," a source said.
Perry's family and friends are happy that she is moving on from ex-husband Russell Brand, whom she had recently divorced.
"The couple were even joking about getting married in an Elvis chapel during a recent trip to Las Vegas. But they ended up getting too drunk to even think about tying the knot for real," the source added.