No it was definitely real, but Danny Devito's portrayal of the event was freaking hilarious, watching Frank lose his mind in pain from a vibrating butt plug was not something I ever expected, that whole scene had me hysterical laughing.
I lost my shit when I started the episode and realized they were parodying this absolutely batshit cheating claim saga. Easily one of my favorite episodes in the series next to Hero or Hate Crime and Thunder Gun Express.
what's hilarious is you could just get a lovense toy, stick it up in there. no need to make anything at all. even has a free app to let somebody else control it.