That's pretty common. You dry off the bathing suit a bit and put the clothes back on. I did it many times in HS and it's not too different as a guy. Her keys were in her pocket? Or her purse she grabbed heading out the door.
I think your major questions are better. e.g. how did you get home, how far away was home, etc. The problem with the most questions is that she has been practicing the answers with sympathetic therapists since 2012 and drumming the answers into her mind. Plus she is not going to stumble over a couple details, she'll just say she doesn't remember and the Dems will interrupt the questioner.
We don't know if she had pockets and/or a purse.
How did she get there?
Why didn't she call her parents when she found out that no adults/parents were at home?
Did she know that no parents would be there?
How did she get home?
Who invited her?
She was NEVER a friend of nor part of the group of friends of Kavanaugh's, so why was he and Judge there? Though both deny ever being at this party.
Her husband had never heard this story, until they went to couples therapy!
Was she using this story to get out of some situation/problem/s that she and her husband were having?
Her story has never passed the smell test!