FURVERT!

2d_animation absurd_res all_fours animated animated_gif anthro anus ass_up balls bdsm bedroom bouncing_balls bouncing_butt bouncing_penis butt butt_slap canid canine canis duo erection fox fur genitals hi_res knest loop male male/male mammal nude paddle penis short_playtime size_difference slap smile spanking spanking_focus tail tail_grab tail_motion tailwag wolf