Rule 34 Dev - 2girls artist_request breasts crossover dark_horse demon_girl demon_horns demon_tail demoness female firearm genderswap_(mtf) gun handgun handwear hellboy hellboy_(series) hellgirl human laura_kinney lesbian male_to_female marvel multiple_girls pale_skin red_skin revolver rule_63 straight_hair topless weapon x-23 x-men yuri|420288184