Rule 34 Dev - 2boys anal anal_sex anus ass brothers cuntboy diphallia diphallism double_penetration duo duo_focus heidibiersack incest intersex male male_focus male_on_cuntboy male_only millions_knives multi_genitalia multi_penis muscular muscular_male penis pussy trans_man transmasc trigun trigun_stampede vaginal_penetration vaginal_sex vash_the_stampede yaoi|9966353376