A hidden gloryhole in a bustling city alleyway promises untold pleasures. A sultry, unseen mouth presses against the hole, hungry for the salty treat on the other side. The lips wrap around the offered cock, their owner's moans muffled by the throbbing flesh. The mysterious mouth works tirelessly, taking the cock deep into their throat, their tongue swirling around the sensitive head. The unseen lips milk the cock, coaxing a thick, creamy load that they eagerly swallow, leaving the satisfied patron wondering who the skilled, anonymous mouth belongs to.