I'm looking for natural looking & size DD breasts cup. I don't want to see the outline of the implant. Any suggestion? (photo)

Judging from your height
and weight, a DD breast and a ‘natural looking breast’ do not go together. A breast that looks natural must be
proportionate with a woman’s body frame, so for someone who is 5.3” and 110lb,
this will not be a size DD. Looking at
your photos, a 360cc silicone implant would give a very nice, natural looking
breast. Placing the implant under the
muscle would give you more upper pole coverage, as well as provide a more
natural, sloping result.

Submuscular implants would give you an excellent result.  There are many disadvantages to over the muscle.  The 360 cc implants will not make you a DD

Based on your photos, while you do have a good amount of tissue for coverage, placing implants over the muscle lends itself to a more unnatural look, much like Pamela Anderson.  There is also a much higher risk of developing capsular contracture when implants are placed over the muscle.  If this happens, the fix for it would be to remove the excessive scar tissue and then reaugment with new implants placed under the muscle.  If your goal is to have the most natural look possible, you should consider placing implants under the muscle.  The muscle will help hide the roundness of the upper portion of the implants.  You may also be a candidate for shaped implants which tend to look even more natural, especially considering the large size you want.  I have found Vectra imaging to be very useful to help patients visualize what various sizes and shapes look like on their frame.  I think it is important for you to understand that going from a B cup to a DD cup on a very small frame will lend itself to an "implanted" look to some degree.  A surgeon can do some things to minimize the unnatural look but you also need to have realistic expectations.