Stem-baring siblings!

Both Kim and Kourtney Kardashian were out and about in the California sun on Thursday sporting some seriously short ensembles. Kim enjoyed some quality time with her fiance Kris Humphries in Beverly Hills, while Kourtney joined her younger sister Khloe for a shopping trip in West Hollywood.

Kim, 30, donned a breezy, sheer frock with black wedge sandals. The bride-to-be was all smiles, walking  hand-in-hand with her 26-year-old basketballer fiance after a lunch date at Cafe Il Tramezzino.

Perhaps taking a cue from her son Mason's days in onesies, Kourtney, 32,  continued to show her love for rompers in an Isabel Lu Wrap design. The 5-foot-tall brunette added several inches to her petite frame in towering Christian Louboutin platform heels.

Poll

Which Sister Had the Better Style on Thursday?

Kim -- her sheer dress is so pretty.
Kourtney -- she looks so cute in a romper.
2330 Total Votes
Which Sister Had the Better Style on Thursday?