She's going to be SO surprised when she finds out whose cock she's been sucking!" Image source: Sex and Submission.com.
At one time, some people said that ring gags were only for show, that giving a blow job while wearing a ring gag wouldn't work unless your cock was very small or skinny (do the term, "needle dick" sound familiar?). But then all these porn sites pretty much DEMONSTRATED that it could be done, to the grateful thanks of an amazed (and perhaps, satiated) world. Thanks to bondage models like Sarah Jane Ceylon, seen above, the little slavegirls that could! (And perhaps a few real life women as well.)