a door bell - You're not sure if a girl will do anal so you stick your fin

You're not sure if a girl will do anal so you stick your finger up her butt to see what she's made of.

I stuck my finger up her butt like I was checking her for treasure.

I tested her by sticking my finger in her butt hole like it was a job interview.

I did a butt hole test and it was like a horror movie.