Stories of Tie Up Games

There is an idea that has been floating in my head, its a story about a girl that after having a fight with her boyfriend she decided to kidnap his mom and hold her hostage for revenge, keeping the mom naked,bound and gagged on her bedroom while sending her son videos of her being groped by this girl.

Please make sure that whoever writes this story doesn't violate any site rules. At the moment, the request, if written, would violate rule 6a at least.