e621 animal_genitalia animal_penis anthro balls bdsm bondage border_collie bound canine canine_penis chair chair_bondage collie dog experiment human laboratory light_skin male mammal penis restrained restraints sabretoothed_ermine sheath solo transformation
 

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Know what would be better than where this image is headed? Feral tf :P

But that's just me...

1

Is that the electric chair, or just a restraint chair?