It was strangely intimate, examining him this way, and Verity had to refocus on the virus model a couple times to get over her self-consciousness. But after a few minutes, Nicky had become just an area to grid and she moved closer and closer to the place where the attraction pulled hardest. It still wasn't hard, not like the viruses were trying to burrow out of his skin or anything, but, hard enough to feel.
Experimentally, she murmured the spell again, dragging the closest point of attraction just an inch to the left, hoping it would move too. Maybe she could lead it out? But the area didn't seem to budge. It was about a handspan above his navel and a bit to the right. She gave one more yank at the viruses with her wand, and then subsided, tired.