do you guys think that only Ain will be available for sharing or will Shani and the wife be available too?
Probably not Shani, based on the focus of her training. Maybe the wife. I would bet that was part of her function as the only woman of a hospitable house before Shani and Ain were born, and until Ain was big enough to join in.
I would think Shani has been training since birth as heir to the tracker, to ensure protection and income for the house and family in case MC is hurt or killed. Now she is skilled enough to go on missions, that seems likely to be where she spends a lot of her game time.
But, this is just speculation. Interesting, engaging game on a bunch of levels.