All you could see was the area from her belly button to her knees.
Where gastric bypass surgery requires carving up the abdomen, lap band is done via a small incision through the belly button.
A laparoscopic approach involves performing part of the surgery through the belly button, leaving a small scar.
bellybutton bel·ly·but·ton (běl'ē-bŭt'n)
The navel (1870s+)
Sexually experienced: She'd been around the block before he met her