Rule 34 Dev - 3boys apron balls ballsack beard_stubble black_hair brain brown_hair bunsen_burner clenched_fist clothed_male_nude_male container creature enormous_schvanstucker erect_nipples excessive_foreskin experiment femboy flask foreskin frankenstein frankenstein's_monster gerard_donelan gray_hair hairy_balls huge_penis human humor hyper_foreskin igor intact laboratory literature long_foreskin long_penis male male_nipples male_only naked nude_male penis public_domain scrotum stitches testicles tongue_out transplanted_penis uncut undead unretracted_foreskin victor_frankenstein yaoi|995234440