Need help remember a joke

I'm having a difficult time remember a joke, can you help?

it went something like this.

A husband and wife were planning on going out on a double date with the wife's sister's date. They were desperate to hire a babysitter at short notice but rejected the child molester so stayed home.

The wife phone her sister to let her know that they won't be able to make the double date. She then asked her sister if she was still planning on going out on the date with the rapist? The sister replied "Of course, am I supposed to stay single?"

rather somebody force themselves on her that pussy cobwebs lmao atleast she got a story to tell