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age_difference anthro bathrobe bedroom big_breasts bovid bovine breasts cattle clothed clothing comic donryu felid female fur greyscale hair interspecies larger_anthro larger_female male male/female mammal mature_anthro mature_female monochrome older_female open_clothing open_robe pantherine pillow robe size_difference slightly_chubby smaller_anthro smaller_male student tail teacher teacher_and_student tiger undressing vex_(donryu)younger_male