Matt grits his teeth.  He can't stand little kids, so he decides to just stay in the back and observe while the others interact with the hot babysitter or teacher or whatever she is.  She IS beautiful, though, and a surge of...something...goes through his head.  Leftovers from seeing Hikari's naked body, no doubt, some kind of transference of energy.  He reflects briefly on his ability to resist temptation; maybe he's not so invulnerable as he'd though, and he can really only shuffle it around from place to place.  That's not nearly so convenient, and he frowns at his own weakness.