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2boys crying fronting incest male_only papyrus penis praise sans sans_(underfell) underfell undertale undertale_au

2boys crying fronting incest male_only papyrus penis praise sans sans_(underfell)underfell undertale undertale_au

2boys crying fronting incest male_only papyrus penis praise sans sans_(underfell) underfell undertale undertale_au

2019 abs animal_genitalia animal_penis anthro arawn balls biceps blush canid canine canine_genitalia canine_penis canis claws duo erection fronting frottage fur hair hi_res howlfei howlfeiwolf knot long_hair male mammal markings muscular muscular_male mutual_masturbation nude open_mouth pecs penis penis_tip ponytail pubes sex sheath simple_background sketch smile tattoo teeth toe_claws tongue vein white_background wolf yaoi

2018 alien atomicglory autobot blue_eyes colored_cum cum cybertronian decepticon duo erection fronting frottage humanoid humanoid_penis living_machine machine male masturbation open_mouth optimus_prime penile_masturbation penis red_eyes robot sex simple_background soundwave teeth transformers unusual_cum yaoi