well that is really something awesome, Ive had a #5 inch long and #3 inch wide black butt plug before but never something that big i really bet that feels very Sexually arousing, Good job.
That must feel sooooo good when it finally pops all the way in. You must have trained for quite some time to work up to that--I was eventually able to take the 8" by 3" bulldozer, but nothing as large as that toy. I like the idea of using the shower stool as something to hold on to and center yourself. Something to aspire to.