Bah, for such a pairing, the sexy hijinks would be even better than toys.
Imagine Sarah's reaction when she finds out what her girlfriend looks like under the red moon. And then, when Amalla comes over for a surprise visit, Sarah mistakes her for Kaolla when she sneaks into her bed, waking the First Princess up to a lingually-cunning surprise. At that point, Kaolla shows up, looking for Sarah, and now its Amalla/Sarah/Kaolla goodness!