I cannot recall the specific year, I do remember most of the details.

I remember being in a dark room.
There was a kiddy pool of some sort.
There was a tall blonde woman wearing a two piece green costume.
I was young, she was in high school.
I remember jumping on her.
She yelled out "Help!", but it was more of a playful yell.

In my juvenile mind, we were being playful.

Borrowing a phrase from Douglas Adams:
It was almost, but not quite entirely unlike sex.