Kim Kardashian Talks Chest and Lip Contouring — and All Things KKW Beauty!

"Just even doing the collab with her on our lip kit . . . we really were able to work together and really figure [it] out. I learned so much just seeing the process and seeing how much work really goes into it, from start to finish. I mean, she doesn’t really look at my formulas or what I’m doing, but sometimes we’ll just be together, and I’ll just show her my packaging and everything. She gets super excited."