And the 19-year-old continued, sharing her reaction when the reality TV starlet called her out:
[Image via Glamour Magazine.]
You saw the seksi ad, now check out the making of it!
She also talks about what makes this scent and its predecessor, Florabotanica, so special!
We can't be sure, but it looks like KStew is really enjoying herself during this shoot and interview.
Watch it for yourself (above) and let us know what U think!