Not all buttock implants are the same. Moreover, they can be placed in 4 different depths in the buttocks; under the skin, under the muscle lining, in the muscle or under the muscle. Placement of a soft buttock implant in or under the muscle may not be felt while placement under the skin or under the muscle lining may be felt and seen.
Your best option is to have fat transfer to the buttocks.
Dr. Peter Aldea