Achieving best aesthetic results during lip augmentation
Personally, I have not been impressed with the aesthetics from any of the permanent lip augmentation options as they do not produce results that are as attractive or as natural as the hyaluronic acid fillers. Juvederm Ultra or Restylane placed conservatively along your vermillion border would give it the definition you are looking for. Since they are both smooth, and fluid, they would look and feel as if you were born with fuller lips.
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I honestly think you have lovely lips that are already nice and full and pouty. So I am not so sure I would be willing to augment them with filler. That being said, liquid injectable silicone is a wonderful permanent filler for lip augmentation. It augments very naturally and very little is needed to give a nice augmentation. Click on the link for before and after pictures of lips augmented with silicone.
Lip augmentation options
Thanks for posting your desired result. It appears simply augmenting your upper lip will do the trick. You can consider fat grafting and/or silicone implants (not injections) as what I would consider your best options. Much easier to remove if you do not like as opposed to injections. Best to see a local plastic surgeon for more information.