Reeling but turned on.

This really happened recently and i dont know anywhere else to post it. Tbh it kinda freaks me out in a bad way but also gets me excited because I'm a twisted pervert. I feel like i need to process it by talking about it.

Anyways. I live with my parents still while going to college. We have a family computer that we all use when needed. The other day mom was on doing work stuff and playing an online game. Not unusual for her. She was on for an hour or so and got up. I got on right after and she had forgotten to log off her account. This is where it gets weird. She was fucking erping in old school runescape.

The guy and her were talking dirty and role playing a scene in one of those houses in the main f2p city. Basically she was being fucking submissive to him, getting called names and all kinds of shit. I didnt read a lot tbh. I was in shock.

I got both like nauseous but intensely aroused. I started shaking and after reading just a few lines immediately closed the client and got up. I havent been able to talk to her at all since and she doesn't suspect a thing. I'm both angry at her and myself. Her for obvious reasons but myself because part of me is now intensely turned on and i am really having a hard time processing this.

Anyways, i just had to get that off my chest. Not sure what to do, if anything.

Currently trying to think of a way to explore this but not sure how, besides just hentai. I want to set her up with partners without her knowing that I'm doing it and have them report back to me on what they did. Not sure if anyone would even want to do that anyways but yeah ive been thinking about it. Not sure how it would work.

Has anyone else had this experience or something similar to it?