ok, first, look trough the thread before bombarding someone with questions. The search bar allows filtering by multiple words, limiting to this thread and even filtering by member. If it's a known bug, it's very likely that either me, Symphony of the night or lordashram already answered. Now, adressing your questions
1 - already answered
here
2 - Yes, complete both their questlines, advance their interactive sex until anal is unlocked, then go to one of their houses in the afternoon (Beth's I think)
3 - not yet