an update,
so I did not purchase a strap on however I did spend some time last week with a young lady that brought along a dong with her. As I fucked her mish on the side of the bed I banged her asshole with the dong, which looked very much like my own junk, as she applied a vibrator to her clitoris. Fun was had by all and it pretty much sealed the deal of buying the strap on to make her squeal.
Thanks again for everyone for your input.
just to clarify...she brought a DONG (), not a Mr. Dong...