Not the sexiest, but one of the sexier ones:
We all know those days when we are just super horny. Yea, i had one of those and i was in the mood for missionary. I got a relatively big, and comfy chair so thats not an issue at all, however i like to deny myself sometimes. So despite being extremely horny and ready, we played around, wrestled, i let him lick me. And whenever he tried to mount i pushed him off, gently. Until i just couldn't resist any longer. I was shaking so hard whilst climaxing, and my legs were wrapped around him to keep him there. I'll never forget that.
Another one:
Simply wearing puppyplay gear while doing "it" .. you know, tailplug, ears, mask .. and then looking at myself in the mirror. ♥