The start of point 17, v13 new content, on the 3rd post of this thread, is fucking wrong and it took me a while to get past it. Here what you need to do:
Requirement: Get the "Anesthetic lotion". You can get it after Ann takes the new job and after some talk with Kira.
1. Go see Ann at 00:00 tuesday or friday after she come back from work
2. Go back see Ann a second time at 00:00 tuesday or friday
3. Go back see Ann a third time at 00:00 tuesday or friday
4. Go back see Ann a fourth time at 00:00 tuesday or friday
5. Go back see Ann a fifth time at 00:00 tuesday or friday
6. Two days later, talk to Alice (You wanted to know about mom...)
7. Go back see Ann a sixth time at 00:00 tuesday or friday
8. Go back see Ann a seventh time at 00:00 tuesday or friday. No additional scenes after this one if you go back see Ann again at the same time
9. Go see Ann at 22:00 or 23:00 when she don't work
10. After this, you can follow the walkthrough starting from the second point: "2nd, talk to Kira at the pool"