Anal and/or oral acts with an additional sub whom the Mistress brings into the session. He is used by the Mistress as a devoted bi-toy — a male slave who acts according to her will and is only brought into play when she decides. Note: Because another person is always involved, the Mistress cannot guarantee that this practice can be carried out in every case. If the bi-toy is unavailable or cancels at short notice, this practice cannot take place during the session.