At her recent doctor’s visit, Julia was told her potassium levels were low, and she should make an effort to eat foods rich in potassium. These include bananas, spinach, and avocados. This afternoon she is at the grocery store with her boyfriend Muffin.

Julia and Muffin drift into the produce section the way some people wander into a quiet chapel—softly, with a sense of purpose. The overhead lights give everything a gentle sheen, especially the avocados, which sit in their little green congregation like contemplative monks.

Muffin picks one up and squeezes it with exaggerated seriousness.

“Too firm,” he declares. “This one has the emotional availability of a cinder block.”

Julia laughs, the kind of laugh that comes from someone who’s been told to take better care of herself but is still adjusting to the idea.

“On the other hand,” Muffin continues, “it’s got a nice shape. Almost as nice as...” After a quick peek up and down the aisle, he nuzzles the avocado against Julia’s breast. Beneath her silk blouse, Julia’ nipple springs erect.