Craving my SIL II

On one occasion I stayed over at my SIL's place because I had an appointment near where she lives. I went up the evening before my appointment, she met me downstairs in her building's lobby to let me in and give me the keys to her apartment. I let myself in since she was on her way to the gym. I went upstairs got myself settled and was working on some things when the devil on my shoulder got the best of me and I started going through her room. I was not looking for anything in particular, I am laying I was looking for her panty drawer. I found her panties and pulled what I considered her sexiest pair out and laid it on a towel on her bed... when this box located on the shelf of her nightstand caught my attention. I opened it up and it was her sex toy (a vibrating dildo.) I decided then what I needed to do to cum on both these items. I felt that one of these items was going to be touching her skin sooner or later. I did my thing and came over both items. I folded her panty and put it back in the drawer and the dildo back in the box where I found it. She came back home from the gym, jumped in the shower, and went into her room. I stayed up in the living room working in preparation for my appointment and went to bed late that night. I can't confirm what I am about to say but I am pretty certain that I heard quiet moans coming out of her room. Something tells me that she masturbated with the dildo that I came on, and I know for sure she wore those cum stained panties. The end.