expansion while penetrated

When a character's bodyparts grow in size during sexual penetration, with said penetration being the implied cause of the expansion.

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anal anal_vore anthro anus bodily_fluids cum digitigrade duo ejaculation equid equine exclamation_point expansion expansion_while_penetrated facial_piercing genital_fluids genitals heart_symbol hi_res imminent_vore living_insertion male male/male mammal murid murine nose_piercing nose_ring penis piercing quetzalcoatlbeautiful0 raised_tail rat ring_piercing rodent scared smug_face snuff squirming_belly stretched_anus stripes tail terrible_tyran trucker_hat vore z33b3r zebra
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absurd_res ahegao anal anal_masturbation anal_orgasm anal_penetration animal_genitalia animal_penis anthro big_butt big_penis big_tail biped blush bodily_fluids breath butt butt_expansion cetacean_genitalia cetacean_penis choker cum cumshot curse cursed_collar cursed_object curved_tail dialogue digital_media_(artwork) dildo dildo_in_ass dildo_insertion dragon ear_piercing ear_ring ejaculation emanata english_text erection expansion expansion_while_penetrated femboy genital_fluids genitals glowing hair hand_on_butt hi_res horn huge_butt jewelry jewelry_only long_hair looking_pleasured magic male male_penetrated masturbation michael_(michaelwave1997) michaelwave1997 multiple_orgasms mythological_creature mythological_scalie mythology necklace nude object_in_ass orgasm overweight overweight_anthro overweight_male panting penetration penis piercing precum profanity ring_piercing scalie sensitivity_increaser sex_toy sex_toy_in_ass sex_toy_insertion shaded simple_background sketch solo tail tapering_penis text thick_thighs tongue tongue_out
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16:9 3d_(artwork) ambiguous_gender animal_dildo animal_sex_toy animated anthro anthro_penetrated beak besuru big_butt butt butt_expansion canine_dildo capcom cookiead69 digital_media_(artwork) dildo dragon duo erection european_mythology expansion expansion_while_penetrated flying_wyvern fur genitals growth hi_res huge_butt hyper hyper_butt monster_hunter mythological_creature mythological_scalie mythology nargacuga nude penetration scalie sex sex_toy short_playtime sound webm western_dragon widescreen wyvern
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16:9 3d_(artwork) 3d_animation animal_genitalia animal_penis animated anthro anthro_focus anthro_penetrated anthrofied arthropod bedroom_eyes big_breasts big_pussy body_part_in_pussy breast_expansion breast_growth breasts changeling christmas christmas_clothing christmas_headwear clothing consistent_pov digital_media_(artwork) duo english_text equid equine equine_genitalia equine_penis erection expansion expansion_while_penetrated faceless_character faceless_human faceless_male female female_focus female_on_human female_penetrated fireplace first_person_view friendship_is_magic from_front_position furniture genitals gloves green_eyes growth hair half-closed_eyes handwear hasbro hat headgear headwear hi_res high_framerate holidays horse huge_breasts human human_on_anthro human_penetrating human_penetrating_anthro human_penetrating_female interspecies leg_on_shoulder looking_at_viewer looking_pleasured male male/female male_on_anthro male_penetrating male_penetrating_anthro male_penetrating_female male_pov mammal mature_female moan my_little_pony narrowed_eyes new_year nipples nude open_mouth penetrating_pov penetration penile penile_penetration penis penis_in_pussy plump_labia pony pussy queen_chrysalis_(mlp) rejy1 santa_hat seductive sex short_playtime sound sound_warning source_filmmaker_(artwork) spread_legs spreading table teeth text vaginal vaginal_penetration webm wide_hipped_female wide_hips widescreen
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