Babysitter manipulated by cousin story

Hello, I’m looking for a story where a boy’s female cousin comes to visit while a babysitter is looking after them. The boy’s cousin manipulates the babysitter into spanking her cousin. I can’t remember the name of this story and would appreciate if anybody can help find it, thanks.

Could it be my story titled:

The Strap - A Regretted Gift

Wherein a visiting cousin tries to her boy cousin spanked by a babysitter?

Goodgulf
I really enjoyed that story but I don’t think it’s the one I’m looking for.

"The Wrong Cousin Vicky" is probably not the one either, but it is on the same theme and it's a great laugh. I'll keep thinking. I recognize your description, but I can't think of the name right now, sorry.