Leigh: I'd offer Katya or Sophie, though I think Muzy's Avery offering makes the most sense. Katya would probably notice it since she's bisexual. Sophie would need to be hit over the head.

Iggy: I'm certain it's probably that the two most prolific families would eventually have members become interested in each other. Cousins/siblings for whatever reason unsuitable (perhaps Tess learns her father is the father of both--which probably wouldn't work since Iggy's family sounds more sane than her own). For whatever reason, Tess and Iggy could be drawn into that. Then again, it doesn't get them away from the family thing. Maybe they get fed up being the go to person in their respective families and go on strike?