Kourtney Kardashian has reportedly offered to be a surrogate for younger sister Kim.
The famous siblings share a close bond, which is clear to see on their reality TV show Keeping Up with the Kardashians.
The series has documented Kim's pregnancy with daughter North and Kourtney's with sons Mason and Reign and daughter Penelope.
Kim, 34, had a troublesome pregnancy and has recently admitted that she and husband Kanye West are finding it hard to conceive for a second time; something her sister is thought to want to help out with.
"Kourtney says she'll carry a child for her if she's still struggling [within a year]. She's even offered to have as many as they want," a source divulged to British magazine Now.
Kim has previously spoken about how painful and scary she found being pregnant, but she also admits she wants a sibling for little North.
The star comes from a large family, with sisters Kourtney and Khloé, brother Rob and half sisters Kendall and Kylie Jenner.
While spouse Kanye is keen to add to his brood, he's thought to be unsure of 35-year-old Kourtney's offer. Instead he wants his wife to stop putting pressure on herself and ease up on her strict diet and body maintenance routine.
"He's urged Kim to be patient before agreeing to Kourtney's offer. He wants Kim to stop obsessing about her diet and stressing out over her body, which he fears may be hampering their baby plan," the insider said.