In tonight's episode of Kourtney & Kim Take Miami, titled Miami Vices, Kim Kardashian is curious as to what it takes to be a private detective. The reality star decides to meet with a real detective and work with him on an actual case to learn more about it.

"If I totally wasn't doing what I am doing now, I would totally would be a crime scene investigator," Kardashian said in her confessional to the camera.

Scott Disick tells Kourtney Kardashian that she needs to lose weight after the mother-of-two stepped on a bathroom scale in front of him and her sister Kim.

"Do you guys ever, like, pee and then weigh yourself?" Kourtney asked them.

"Yeah, of course. You always gotta go on an empty stomach," Scott answered.

When the bathroom scale reveals that Kourtney weighs 115 pounds, Kim shouts, "115! I am so jealous."

"Do you know what you're supposed to weigh for your average weight for your height?" Scott asked the mother of his children.

Kourtney then admitted she used to weigh 95 lb. when they first met.

"Like, 95," Kourtney replied.

Disick said "I feel like 93 is the dream."

"Actually," Kourtney responds, "when I first met you I was probably more like 100 and then I got down."

"Your body was banging when I first saw you on the beach with that little ass," Disick commented.

Kim is visibly uncomfortable about the conversation and asks Kourtney, "How do you feel when he's like, 'I want you at 95 pounds?'"

"It doesn't bother me because I have to do what's best for me," Kourtney replied nonchalantly "I can't compare myself to supermodels."

In another conversation, Kim tells Kourtney that she needs to treat him like a husband and not her son.

Kourtney & Kim Take Miami airs Sundays at 9 p.m. EST on the E!

Watch the preview clip of Kim Kardashian investigate a case on Kourtney & Kim Take Miami

Tags: Kourtney & Kim Take Miami Kim Kardashian kourtney kardashian scott disick