Thanks for the response LR, Couple of questions: 1) What is the sphincter at the top of the rectum you are referring to? Are you talking about the external sphincter? I haven't seen any sphincter muscles labeled on any diagrams of the rectum/sigmoid colon area. 2) Wouldn't the expelling nature from ...

Has anyone experienced a continual 'Bearing Down' sensation when you use a toy to masturbate with? (or when you have anal sex) I have been toying with myself for a couple of years now as my wife will not try anything other than vanilla. I have diy'ed a few items as well as buying online and have rec...