lockedbygf:

As she slid her strap-on out of my ass she whispered, “I
will be right back”.  Effortlessly, she
slid the prostate massager in my ass, and set it on low.  A moment later, she was gone.  Strapped to the bench, hooded, gagged and
helpless, all I could do was enjoy the submission, try to get comfortable and
wonder how much pre-cum my cock was slobbering through the opening at the end
of my chastity tube.  I would be an hour
before she returned, one hour of mind-blowing vulnerability.  What came next however, was quite unexpected!