How can I get a more feminine look? Will Botox in the masseters help? (Photos)

Thank you for your question. Botox is the best option for facial slimming, in my opinion.Injecting Botox into a muscle causes it to relax and shrink in size. When we use this information and apply it to the masseter (chewing muscle), it causes the muscle to become smaller and therefore results in a thinner facial appearance. 
Additionally, PDO threading can be used along the jaw for a more defined face. These are both helpful products.

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  If you have masseter hypertrophy, then botox can be effective for slimming the lower face.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

Softening up your jaws with Botox will certainly help you look more feminine. But looking at your pictures I’m not sure why you need Botox injections to begin with. You certainly look feminine and your jaws are not prominent in my opinion.