I'm addicted to teasing other guys on reddit

I [23m] have been sharing my gf [20f] with other guys online

My girlfriend, Alyssa (fake name for privacy) is a 25-year-old girl, short and pale with long black hair, and has a flat chest but a really nice petite butt. She knows I'm into taking pictures of her and showing her off, but she doesn't know the full extent of what I've been doing. She's also very shy and insecure so I'm not sure how I would tell her anyways.

I made an account posing as her to post on boards for appearance advice and ratings. The attention and comments turned me on, and I found myself wanting more. I started to post more revealing photos, and the feedback loop of likes and comments became addictive. I always blur her face or crop it since she's not fully aware of this.

As time went on, I began to push the boundaries. I started trading pictures with other guys and the more one-on-one chats took it to another level for me. I was pretty much showing her off everyday and couldn't get enough. Whenever I was with her now or have sex with her all I can think about is my chats and honestly it's been pretty awesome.

Recently, things have escalated even further. A guy I've traded with on here quite a bit is actually pretty local and expressed interest in meeting up. We've been trying to plan a meetup sometime soon and we're going to jerk off together while looking at photos of our respective girls. I'm really turned on by the idea, but I'm also a bit nervous. I've done similar things in person but only with people I already knew.

Alyssa still doesn't know the full extent of what I'm doing. She thinks I'm just sharing some photos with friends, and I guess that's technically true. But I feel like I'm walking a fine line here, and I'm not sure how she'd react if she found out the truth. I'm torn between the excitement of my little hobby and the fear of finding out and having a negative reaction.