for me, Susans trait is stuck at 0, Rachel at 2.
According to the walkthrough:
Rachel's submission can be increased :
. If you catch her abusing Amy and if you take action
had that 1 time, then after ~ 30 days of playing on the island never again
. If you let Amy watch you fuck Rachel
doens't trigger because trait is at 2
. If you make Rachel apologize after a spanking
doesn't occur for me because I don't get any spanking event
during the prologue
- done that
Susan's respect can be increased :
. If she sees you spank Rachel
. If you manage to spank her
cannot do that bevause rachel is stuck at 2.
have 38 common seashells by now and 7 rare, the character auto-refuses the offered handjob if I finde any rare when susan is present (or use the "I found one" dialogue)
It's impossible not to catch Rachel abusing Amy. Every hour, before taking any action, check the 2 bedrooms. At least once per day yuo'll find them.
First time you sleep with Rachel, there is no option. Second and subsequent times, go to bed between 22.00 and 23.00. You'll have the option to fuck Rachel with Amy watching. It's a repeatable that bring you +1 pt submission each time. And there is no minima on Rachel's trait to do it. It's just not possible the first time you have sex with Rachel.
When Rachel's sub is high enough you have a dialog option with Susan. It unlocks the spanking event. Once again, go check Rachel every hour, talk to her. She'll make a mistake once per day (10% chance per hour).
To spank both Rachel and Susan you need to have found the rattan cane in the house.
When you spank Rachel, is her sub is high enough, you can call Susan to watch.