Slave chained into Fucking Machine Cage by Dominatrix

Description: My collared and leashed male submissive slave is instructed inside his cage. today, he has a new cage mate which he is introduced to - a fucking machine. once he is inside, i guide his ass (which i like to call his boy pussy) onto a large dildo which is mounted onto a fucking machine. after the dildo is tucked safely inside his hole, i lock him by his ankles and wrists to the four corners of the cage. i explain to my slave that he is to be kept inside and have his boy pussy trained by my fucking machine as i get on with my busy day. occasionally i will press the button on the machine's remote control to increase the pace at which his ass is being ravaged. i tell him that i will increase the dildo size as and when i decide and if i am feeling nice i will add lube every now and then. he is also told that his positions will also be adjusted as i see fit. all of this training is necessary for him to maintain his anal performance and to please me.