Their mutual love of expensive playthings has seen them forking out on luxury gifts for one another, from Louis Vuitton bracelets to a Lamborgini.
But it seems Kim Kardashian and Kanye West are preparing for their biggest splurge yet – as they hunt for a $10m home in Miami.
Defying reports that rapper Kanye is ‘not as tight’ with the reality star, they looked at four homes worth between $7m and $10m on Monday.
With Kim, 31, temporarily based in Miami for her new reality series the couple have been constantly spotted in the area.
A source told TMZ: ‘K&K have been talking about getting their own place for a couple of months and believe Miami is the perfect location because they both love the city.’
Kim, who shows off her bikini body on the cover of this month’s Australian Cosmopolitan magazine, couldn’t keep her hands off her lover.
At one point an overeager member of the paparazzi even snapped the reality star mid-squeeze of Kanye West’s backside.
While the pair sheltered under an umbrella, Kim could be seen grabbing onto her beau’s derrière, sinking her pink nails in for fleshy feel.
And while she is hardly known for her understated style, Kim rocked an enormous pair of $750 sunglasses by designer Rick Owens on Monday.
Shady lady: Kim Kardashian shows off a pair of huge sunglasses in Miami
Kim posted a photo of herself and Kanye on Instagram wearing the huge glasses with the caption: ‘So shady!’
The curvy 31-year-old wore a black leather mini with a silk shirt and a sexy pair of cutaway black heels as she strolled around Florida and later cruised in an all-black Rolls Royce with West.
Kanye and Kim had not been spotted together for several weeks sparking rumours that things between the two were cooling off.
Rapper turned designer Kanye had been in Paris for Fashion Week, while Kim had been in Australia on a promotional tour and Florida filming new episodes of her reality TV show.
But the couple reunited in Miami this week and seemed to be as good as gold as the fashionista was also showing off a new Louis Vuitton clutch purse and cuff bracelet.
The designer goodies were apparently gifts from the Mercy singer, as she also posted a photo of them with the words: ‘The Louis Vuitton Don strikes again! #lovingmygoodiesfromParis.’
The Watch The Throne star, 35, has been giving Kim a style makeover since they started dating a year ago, even bringing his stylist, Renelou Padora, over to Kim’s place to totally revamp her closet
And now the fashion conscious pair are said to be planning a joint fashion range to ‘seal their relationship’.
A source told The Sun : ‘They’ve both got massive fan bases who will buy their gear. It’s a sign they’re in for the long haul and they think it’s a romantic way to seal their relationship.’
According to the source, they feel that the ‘timing is right’ for the new business venture.
Style makeover: Since dating Kanye West, Kim Kardashian has had her wardrobe revamped by him
Kim already designs a fashion line for US department store Sears with sisters Khloe and Kourtney, while Kanye launched his DW by Kanye West last October.
But the Grammy-winning artist was told by at least two fashion editors to stick to his day job but was quick to hit back at critics of his newly launched label by taking to Twitter to outline his former design work experience.
‘I moved to Rome after I left Japan and worked at Fendi for 4 months under cover … I was there to give ideas for the men’s collection,’ he tweeted.
‘I snuck to Giuseppe Zanotti Factory while still under [my Louis Vuitton] contract and learned to design woman’s shoes for 2 years before my first show in Paris,’ he added.
‘[I was] also offered a position to at Versace which I could not take due to my contract with LV which was for 2 years,’ he boasted.
He then went on to explain how he moved to Paris early last year to open an ’embarrassingly small’ design studio: ‘Everything I knew about my woman’s clothing was what my Mom would wear.
Hard to take you seriously with those sneakers! Kanye looked rather serious despite his pink booties
‘I guess some critics would joke that I still don’t know anything LOL,’ he said.
Meanwhile, Kim is reportedly upset ex Reggie Bush is expecting with new girlfriend Lilit Avagyan.
A source told RadarOnline: ‘Kim is very upset that there are reports out there Reggie has gotten Lilit pregnant. Kim had pressured Reggie for a very long time to get married while they were together because she wanted to have a family with him.
‘Reggie just thought that Kim placed too much of a priority on her fame and reality television though and he wanted none of it.
‘Reggie was a part of the Kardashian family for over five years and deep down Kim has always held out hope that they would end up together, even though she married Kris Humphries.’
The insider said it felt like ‘a slap in the face’ to Kim that Reggie would consider having a baby with another woman when he wouldn’t with her.