Could I get away with doing half a syringe of Juvederm? (Photos)

Thank you for sharing your question and photos. Based on the photos you have provided, it appears you can add a small amount of filler to your lips while still looking natural. I would recommend Juvederm Volbella, which is a hyaluronic acid filler specifically designed to offer soft results for the lips and mouth area. These syringes come with 0.55cc, which is a perfect amount to start with, especially in someone as young as you. When it comes to lips, I always recommend starting with a very conservative amount to avoid adding too much and looking unnatural. After two weeks, more can be added if you want more volume. I recommend scheduling a consultation with a board-certified specialist to get more information about which fillers are right for you. 

Thank you for your question.  Everyone has a different aesthetic.  You have nice lips, (shape, cupid's bow, lip ratio, etc.).  If you want to change the aesthetic, your injector should be able to tailor a program for you.  Please make sure your injector is well trained and experienced.  Remember that cheap gets expensive fast.  Please call with any questions.
Jeffrey J. Roth, M.D., F.A.C.S.
Board Certified Plastic Surgeon
Las Vegas Plastic Surgery

Aknolles,Your current lips are the goal for 99% of women seeking lip enhancement.  I'd say 0.5 cc of Juvederm Volbella would be best to give you a more hydrated, smooth and slightly fuller look.  If you truly want to mimic Khloe, then 1.0 cc of Juvederm Ultra, strategically placed, would be your best plan.  Good luck!