where is your yuri level at? I know the first time I failed I didn't realize I needed this alongside the 75 lp and 25 kp. If it is under 45 this will cause a failure as well.
Then make sure you had sex with both girls within 1 week. That should do it. Also for full content I recommend going to 55 for both since you lose 5 yuri points doing this and one of the optional scenes require them both to be 50.
Update! I found out it won't trigger if their Yuri is too high as well. Accidentally got bree to 60 and so nothing was happening. There's way more stipulations to this game than I initially thought. That's awesome yet also frustrating...
