Go to a Adult Store or online and look for a Doc Johnson strapon in the 8 to 10 inch variety, its the best, looks and feels like the real thing and a bottle of ID Glide for lube. If you can afford it, order a Sybian machine with a penis you desire for your own use and maybe his if he wants a good ass screwing.
After you use the Sybian a few times, you might want to marry it instead of him,