Kanye West has been married to Kim Kardashian, 37, since 2014, but could have doubts after hearing her latest release.
The last 41-year-old song XTCY (pronounced: ecstasy) was released on Friday night and includes some very questionable lyrics.
The three-minute song begins with: "Do you have sick thoughts? I have more of them / Do you have a sister-in-law that you would crush? I have four of them."
Kim has four sisters: Kourtney, 39, and Khloe Kardashian, 34, and Kendall, 22, and Kylie Jenner, 21.
"Do you have a sister-in-law that you would crush? I have four of them"
It was Kylie's birthday this week, and she and her four sisters appear on the cover of XTCY in a photo taken at Ky's party.
Another letter in the first verse is: "Damn, those are your sisters / You did something evil with them".
Later, he says: "If she sows, that's a success / If a girl c ***, that's a f *** fest".
Kanye also discusses drug use before returning to "screams" and "scoops", as in his single Lift Yourself.
twitter @ kimkardashian / abc
twitter @ kimkardashian
The song was released as a free download available on Twitter, through DJ Clark Kent.
She tweeted: "Sitting in the studio with my man Kanye West and said:" Clark, let the new XTCY joint go! Then enjoy: the new Kanye West. "
Kanye was one of the 3,400 who retweeted the link to the song, sending it to its 28 million followers.
Her sisters-in-law have shared photos similar to the cover of XTCY, in celebration of Kylie's birthday.
Kim and Kylie coordinated in pink, Kourtney dressed in purple, Khloe vanished in everything, while Kendall and Kris looked elegant in black.
On Instagram, Kim wrote: "Happy birthday 21 Kylie Jenner baby! It's a trip my little sister is 21 years old.
"So happy to be with this sister and now mom travels with you forever, I love you very much, you will always be my baby sister and I am always here for you no matter what."