Maybe. There's always a chance for new actors to join the cast of American Horror Story. If the producers think Lisa Rinna would be a good fit for a certain role in a future season, she could be in it.
There is no evidence to suggest that Lisa Rinna has had any involvement in American Horror Story at present. It's possible that she might be considered for a role in upcoming seasons, but until then, we can't say she has played any part in the series.
I'm not sure specifically what her role in 'American Horror Stories' is. She might play a character that adds to the horror and drama of the story, but without more research, it's hard to say exactly.
I'm not sure specifically which 'mom story' about Lisa Rinna you're referring to. She has been in the public eye for a long time. Maybe it could be related to how her mom influenced her career choices. For example, if her mom was supportive of her getting into acting, that would be a positive influence on her journey in the entertainment industry.
One possible aspect could be her mom's influence on her fashion sense. Lisa Rinna is known for her style, and it's possible her mom played a role in that, either by introducing her to certain fashion trends or by instilling a sense of confidence in her appearance.
Lisa was on a camping trip in a remote forest. She set up her tent near a spooky - looking lake. At night, while she was trying to sleep, she heard a soft voice calling her name. Thinking it was one of her friends playing a trick, she went out to check. But there was no one there. As she walked back to her tent, she saw a pair of glowing eyes in the bushes. A strange creature then lunged at her, and she barely escaped by running all the way back to the car and driving away.
Since it's a horror story, fear and suspense are likely key elements. In the case of the 'Popcorn Horror Lisa Story', Lisa's reactions to the events around her would be important. If there are other characters, their relationships with Lisa could also be a key part. For instance, if she has a friend who gets possessed or something, that would add to the horror. And of course, there's probably some sort of threat or danger that is constantly looming over Lisa, which keeps the story tense.