Genital Cosmetic or Sexual aesthetic, also called gender aesthetic, deals mostly about redesigning, shaping, augmenting for a desired looks to the male and female sexual organ. So you will have the male sexual and female sexual aesthetic.
For the female, due to the pregnancy and child birth, the labia becomes darker and pigmented. The inner lips, also called labia minora gets elongated and very much enlarged covering the rest of the vulva. Due to aging the outer lips, the labia majora lost the volume due to the thinning of the fat and skin. This may need volumetric replacement and augmentation to improve the look.
Most request will be to trim and tidy up the inner lips so that it does not cover up the introitus. Some find the extra appendages troublesome other find it to come into the way of urination. Thus the lady get it removed for hygiene reason too.
The vagina opening may be loosened due to natural child birth or after the delivery, the tear or the episiotomy cut wound was not properly repaired, or simply the wound breaks down during the healing process. In this event, the lady may want to repairs and restore the vagina not only the opening but also the most part of the length of the vagina.
It is believed that the tighter vagina may be able to increase the friction and hence the sensation during love making. This is mostly to satisfy the male partner, rather than for the lady herself.
For the male, it is more about enhancing the virility of the male organ. This is by way of enlarging and lengthening the penis. By enlarging is mean to increase the diameter or the thickness of the penis. By lengthening is to increase the penis length by another 5 cm. The normal erect penis has a length of about 12.5 cm. Increasing diameter can be done by inserting the extra body tissue or use fat filler or other artificial filler material to be placed under the skin.
The various genital piercing on the clitoris hood, the labia minora and labia majora, the gland penis is believed to help improve the sensation during love making and sexual intercourse. This piercing ring or jewelry used comes in a wide assortment of design in terms of shape, size, color and material, also comes under the purview of sexual aesthetic. When done professionally, there is minimal pain, or complication rather than been done by non medically trained personnel. Any invasive procedure need to be done by qualified doctor.
This is also coming under the medical profession and is mostly done by urologist.