28 F4F UK/Online found my SIL’s pics on my brothers pc and it got me heated for her

I visited my brother and when I was using his pc I got a little curious and came across a file that I shouldn’t have.

curiousity got the best of me and I rubbed myself to her pics and this whole turned me on a lot and was eye opening.

If you are a bi or lesbian cis girl that is kinky tell me your favorite position and hopefully you are fun to chat and be a bit dominant