Pool Party Lore: ARAMARAMA

( NA did not get this event so I don't expect them to grasp everything, so I left a link to the comic. )

In the ARAMARAMA comic, it is extremely hinted that Gangplank and Caitlyn have some sort of relationship and Zoe is related to them.

Obvious points include: Constant home speak - "I can steer us home from a pool party." "Are we nearly home?" Constant bickering between Caitlyn and GP. Both having concern for ( and escorting ) Zoe. Gangplank carrying Caitlyn's plushie. ( Though that's a bit of a stretch. ) Gangplank's concern for Caitlyn and Zoe before participating in the ARAMARAMA event. Caitlyn saying "We're doing it", aside from her normal personality being along the lines of "I'm doing it."

What do you think? Family, relatives or just really really really close friends?