Master Viper (blowjob technique) (Pixiv Fanbox)

While I was sick on bed, I re-watched kung fu panda.. and my pervert mind told me to do this to Master Viper!
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I feel a lot better and healthy, so Im ready for draw more sexy girls, yay! *3*)
Download zexlauxes1739.zip
and a random sketch that was a warm up before this animation :P