Rule 34 Dev - 2boys age_difference bandage bara beard black_hair blush bottomless bottomless_male censored chalkboard checking classroom clothing dark_skin display embarrassed examination exhibition exhibitionism facial_hair facial_scar flaccid foreskin gay holding_penis japanese_text jin-ks lesson male male/male male_only mosaic_censoring muscular muscular_male older_man_and_younger_boy open_jacket penis pointless_censoring pubic_hair public school school_uniform schoolboy sex_ed student student_and_teacher tan tanline teacher teaching testicles thick_thighs uncircumcised undercut uniform yaoi|66687752