(Cover) - EN Showbiz - Kim Kardashian's romance with Kanye West apparently has a high price tag.

The couple only went public with their romance in April after years of being just friends.

And Life & Style claims that the twosome's lavish lifestyle has cost them $4 million so far.

The couple has been seen in Los Angeles, New York, Paris, Toronto and Mexico and has spent around $700,000 on first class airline seats and private jets.

The publication adds that their pricey gifts for each other have also added up and includes Kim's $750,000 Lamborghini for the rapper's birthday.

A trip to Cannes for Kanye's Cruel Summer premiere saw them nestling aboard a $38 million yacht called Lady Joy that came with a price tag of a reported $250,000 for the week's stay.

The pair has bonded over their love of fashion and the Watch the Throne star has been indulging his girlfriend with designer clothes costing thousands of dollars.

Meanwhile, Kim is reportedly "honoured" to be the subject of Kanye's new track called Perfect B***h which was penned about her. (C) Cover Media