Do the following:i cant pass penny's test. using the corkscrew dildo and rhonda meetings in the morning at the park but still cant pass the test. u got around
Talk to the gym instructor and meet with her at the park at 6am (requires departing at 4am) at least once.
Talk to the library instructor and get the corkscrew dildo (you've done this).
Make sure you have some lube from the lab, but keep the limited life of it in mind
Use the corkscrew dildo with lube until you get the anus status to "trained"
At that point you should pass the test - BUT the anus status MUST be "trained." Do not do ANYTHING that might change this once you get to that status until after the test - this includes the morning park meet, sleeping with the manager or the babysitting "extra" job.
I found that I had to re-do the park meet-up and dildo training after loading a game from 1.9 to pass the test.