Tease me, squeeze me, please me.
Tease and denial, also known as T&D, TD, is a sexual practice in which one partner (usually a man) is highly sexually aroused by the other (usually a woman), but is consistently denied orgasm.
The player arouses her client violently and using various means until he is close to orgasm, but then denies sexual fulfillment.
There are as many variations as there are whores and clients - for example, manually stimulating a bound man or stimulating a man with a chastity harness by performing sexual acts on himself. The punishment of men who 'come anyway' and then receive their 'punishment' for it is also popular.
Legends about tease and denial for PR purposes
In recent years, as with other sexual practices, there have been urban legends about T&D, for example that the players are ordinary wives who would privately prescribe chastity belts to their husbands. In reality, this is covert PR for so-called 'chastity belts for men'.