Dr. Clouds assures him that it can take time to see noticeable changes BUT that maybe there's something she can do for him in the meantime to give him a boost. That's when she offers him a new treatment that she's seen work very well for her other patients: a NURU massage. It's been so successful, in fact, that she has a permanent NURU setup at her house -- why doesn't he come over and try it out for himself? WIll eagerly agrees, willing to try ANYTHING at this point.
A short time later, though he's initially flustered, Will grows more and more relaxed as Dr. Claire performs a blissful NURU massage on him. With all that oil and sensual full-body contact, it's clear that they're both getting aroused. That's when they agree to finish the massage off with some playful, light-hearted sex, giving Will's system an even BIGGER boost!