Different pegging tests on this slave to get a reward

Description: I use this slave who always comes to see me to do some new anal tests. i'm going to use him for different strapon sizes. each time bigger and also fisting him. he's so horny that he wants more and i put my biggest dildo in him which is a huge cock. since it fits all the way in, i give him the reward of licking my ass and cumming after a whole month without being able to do it.