Try to stall

You jump slightly as she gives your sore red bottom a final light smack, making your throbbing erection rub against her leg again.

Since she's giving you a choice, you try to stall it a bit by taking your time to respond. You know this is the only reprieve you'll get for the next 15 minutes...

Miss Locke seems to catch on that you're trying to delay though; after a couple seconds of silence, she grabs a bit of your sore ass between two fingers and pinches it hard, not releasing you despite your squeal of pain and writhing attempts to escape.

Your struggles only result in Miss Locke letting out a soft, evil laugh.

"Since I'm so kind-hearted, I'll still let you pick, even though you're misbehaving... ruler, paddle or hand?"

Her ongoing pinch hurts your spanked butt so badly that you can't think. It's a white-hot pain concentrated at one point, and you blurt out the first thing that comes to mind in order to get her to stop...