I absolutely love playing with a guys ass, and I have probably over 30 butt toys and have tried about 20 different lubes. My recommendations are from what I find works best to give my subs the best prostate orgasms.

I also recommend njoy toys. Their wands are fantastic for masturbation.
A stainless steel anal hook. Attach it to a collar or the baseboard. It will change your world.
Vixskin dildos
Inflatable plugs
I've received very good feedback from my electric butt plug, but obviously not everyone loves electricity.
Pjur Backdoor Water-Based Anal Lubricant

When shopping try to get anything made of stainless steel or medical grade silicone. Do NOT buy anything PVC/silicone blend/jelly garbage. Do not shop on Amazon unless you are 100% sure it's from the original seller.
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Goddess Erika Lynx
Playful, Creative, and Sensual Female Domination.
NJ. NYC. MA

www.GoddessLynx.com
www.Loyalfans.com/dommelynx
www.Twitter.com/DommeLynx