A $6,000 insulin pump with an on-board computer chip is not alluring. Neither is the white mesh adhesive patch on my naked abdomen or the length of nylon tubing that connects the patch to the pump. There is only illness, and there is no way to make that sexy. After several years as a medical device wearer, I know. Negligees and nudity are impractical, because neither provides much to clip the device to. Clothes and pajamas, on the other hand, have waistbands or pockets, which keep the pump steady during the prelude of kissing and...