"Well, well, well," your sister smiled. "Look who finally came out of the shoe closet."
"Shut up," you reply. You run two fingernails down each of her soles, causing her to roar with laughter. She's just as ticklish as you remember. "Hmm, you're just as ticklish as I remember."
"I didn't mean..." she starts. Possibly due to the presence of fingernails between her toes, she begins to laugh like a madwoman after that, so you are not sure what she was going to say.
"Sorry, I didn't catch that," you tease.
"Look, HAHAHAHAHA. Hold on for a HAHAHAHAHA. Please stoHAHAHAHAHAp!" As you prepare for another assault on her helpless feet, you hesitate. She was always nice to you, and even though she will not remember this, you cannot bear to be such a dick.
"Well, since you said please..." you back off, trying to exaggerate your mercy.
"Thank you," your sister pants. "As I was saying, I didn't mean it as an insult. You're finally one of us."
"Us?"
"You, me, and mom. We're all foot fetishists."
"Really?" You are not sure whether to be embarrassed, happy, or both.
"Yep, mom said it runs in her family."
"Oh."
"Now come on," she wiggles her toes playfully. "You have an hour and 45 minutes left."
You prepare to attack her feet again, but then stop. "How do you know that?"
"Um...I plead the Fifth?" she tries.
"Now, sis, we can do this the boring way or the fun way."