abs anthro athletic bdsm beak biceps bodily_fluids bondage bottomwear bound clothing cuff_(restraint) deltoids feathers growth laboratory male muscle_growth muscular muscular_anthro muscular_male navel neck_muscles pain pecs restraints ripped_muscles screaming shorts solo sweat sweating_profusely test_subject triceps veiny_muscles birdovo fleck_(birdovo) avian bird falcon falconid hi_res
Testing super soldier serum on test subjects. III