Ray J has given Kim Kardashian his share of the 2014 profits from their sex tape as a wedding gift.

The 33-year-old singer has offered his former girlfriend and her fiance Kanye West a cheque for almost $47,000, which is the amount of money he made from the X-rated 'Kim Kardashian Superstar' video - which was filmed when they were dating in 2007 - between January and April this year.

According to gossip website TMZ, Ray picked up $6135.60 in January, a staggering $20,097.31 in February, $9,674.76 in March, and $10,931.52 in April, and under the deal signed with Vivid Entertainment - who say the tape has made an estimated $50 million to date - she is entitled to royalties at least the same as her former lover.

It is unclear as yet whether Kim - who has 10-month-old daughter North with Kanye - will accept the gift, but if she doesn't, the singer has pledged to donate it to her favourite charity.

It was previously claimed that Kanye - who is set to marry the 'Keeping Up with the Kardashians' star at the weekend - had always refused to watch the raunchy film.

A source previously said: ''For all his bad-boy image, he's quite old-fashioned and [while they were still just friends] he thought it inappropriate to view Kim's tape. Now that they are a couple, there's no way Kanye's ever going to look at it.''

The 'Gotta Have It' hitmaker is so sensitive about the sex tape - which features Kim and Ray J participating in a variety of erotic acts - he won't even let anyone in his entourage or circle of friends talk about it.

The source added: ''When some of his buddies were teasing him about it over a few beers just recently, he went crazy and told them in no uncertain terms that the subject was completely off limits. At first they thought he was joking, but he was deadly serious. Kanye never, ever wants to see the tape, and he has banned anyone in his entourage from even talking about it.''