All you need to know...https://www.shape.com/lifestyle/sex-and-love/how-to-have-anal-orgasm
$157 for a sex toy??? (From the above link)
If you're currently-without-bae, and you want to explore the sensation of being rimmed while you masturbate, you have a few options: One is to use the b-Vibe Rimming plug (Buy it, $157, babeland.com) which is deserving of its name. Featuring a ring of rotating beads in its neck, when inside your body it actually feels like a tongue! Just note: Even the petite size is still pretty big (think: a medium-sized strawberry), so this is best for non-beginner anal masturbators.