Would You Take Advice From Kim? Kardashian Tells Kourtney 'Scott's Gonna Cheat On You & It'll Be Your Fault!'

Is trouble brewing in Miami?

Kim Kardashian gives her sister Kourtney some sobering advice in the upcoming episode of Kourtney & Kim Take Miami, and RadarOnline.com has the clip.

"You don't want any, like, even alone time with Scott," Kim tells her big sister while talking about Kourtney's relationship woes with her baby daddy . "It's weird."

"For me, I like doing stuff all together as a family," Kourtney replies.

But Kim is not satisfied with the response.

"I mean you can't neglect him," she says. "You know, I just feel like he was such a big part of your life before you even had the kids. So now that they came along, like, you're gonna ditch Scott. Like, you just, you need to give him a little bit of attention."

Never one to let things go, after Kourtney repeatedly denies "ditching" her party loving baby daddy, Kim takes her argument to the next level.

"He's gonna cheat on you, and it'll be your fault," says the twice-married 32-year-old reality sage, before warning, "You're literally gonna end up, like, alone."

To find out what other pearls of relationships wisdom Kim has to impart watch the video on RadarOnline.com and tune in to Kourtney & Kim Take Miami Sunday on E! at 9/8c.