After hanging up, Kendall and Kylie, 21, let their mom know that they want to help out.
“Kylie and I have been talking and we decided that we will trade you MJ duties so that you can have more free time — give you some time to breathe,” Kendall says.
“I would love to spend more time with MJ,” Kylie adds.
“I mean, I’m not going to lie, it would be really great to have a little bit of support in that area,” Kris admits. “I sometimes don’t know what to do with her, because if she doesn’t feel like going out … but if she had more visitors, that would be really terrific for her. She would love to have you guy around. That would make me feel so much better. I can breathe for a minute.”
“We’ll be there,” Kylie promises. “Enjoy yourself.”
Later, Kylie explains that Kris has been “really concerned about her mom” because MJ “has her weak moments.”
“As selfless as she is, I really just want to give my mom some time to wind down and relax and think about herself for once,” Kylie says.
RELATED VIDEO: Khloé Kardashian Sobs Over Tristan Thompson in KUWTK Trailer: ‘He Has No Respect for Me’
Kris, 63, opened up about MJ’s health on the most recent episode of KUWTK, revealing that she had been diagnosed with a serious case of pneumonia. As a result, Kris decided to opt out of the family trip to Bali.
“There’s a lot going on and I’ve been really stressed out because of my mom,” she said. “I just feel something tugging at my heart not to go on the trip. Something is just pulling me to stay here with MJ. I would be taking off feeling like I was making the worst decision.”
“I could never leave her now. And because of that, I’ve decided not to go to Bali with my family and stay home and spend time with MJ and be here in case she needs me,” she continued. “I just want to make sure she’s okay.”
Keeping Up with the Kardashians airs Sundays (9 p.m. ET) on E!