Had a great experience with my girlfriend recently. Around a year ago I told my girlfriend I was very turned on by the idea of using her with a friend in a mfm threesome. She was receptive to the idea and I bought some toys to use on her after that. First it started with a wand vibrator while she was tied up and blindfolded in my bed which made her cum many times. The next new thing was a dildo to simulate a mfm threesome , The toy was about an inch or so longer than me and a bit thicker but I think the best part about it for her was that it could fuck her hard without having to stop every few seconds to stop from cumming too quickly. She has cum so hard on that dildo in ways I’ve never seen her cum on my cock. The next step I introduced her to was taking a bigger toy in her pussy , this one was a bbc dildo, about three inches longer than me and much thicker. I’ve only used it on her one night so far but I started taking it very slow on her pussy, worried it would be too much for her and hurt. I realized quickly that with how wet she was that taking this bbc dildo was no problem, her little pussy took to being stretched out by it easily and she must have cum at least three times on it.