how do you have 3some
with the step sisters, they just come middle of night to sleep and leave in morning for me. am i missing somthing?
I think the trigger point is when both stepsisters decide to sleep with you because there's instances when only one of the two would sleep with you and leave in the morning.
Once they do, you have to keep trying and hope that they fight in the middle of the night, that's when you can progress to the scene.
1. They both sleep together with you.
2. They fight in the middle of the night for one or two nights
3. The MC decides to discipline them by asking them to kiss
4. (1), (2) and (3) happens again, but this time you can have them kiss naked together
6. After nos. (1)-(4) reoccurs, it opens the option to jerk off to them while they kiss naked together
7. And finally, you get the ultimate discipline option of a threesome.
In my gameplay, it took me many nights to accomplish this, because not every night both stepsisters would decide to sleep with the MC, it would just be one of the two or even none. Further, not every night when they do sleep with the MC together will they choose to fight in the middle of the night. So it took a while to get this scene.