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abdominal_bulge anal anthro aphrodisiac arm_binds barefoot bdsm bodily_fluids bondage bound breasts collar creature_inside cuff_(restraint)cuffs_to_collar cum cum_in_vagina cum_inside deep_penetration dildo drooling edging electrostimulation feet female forced forced_orgasm fucking_machine gag gagged genital_fluids genitals hi_res information_board internal laboratory laboratory_equipment leather leather_cuffs living_insertion lyza_(wandering_lizardfolk)machine metal_collar monitors navel nipples non-mammal_breasts non-mammal_navel non-mammal_nipples non-mammal_vulva nude orgasm orgasm_control penetration questionable_consent rape reptile resisting_orgasm restraints ring_gag saliva scalie science_fiction scientific_experiment scientific_instrument sex sex_toy shackles sitting snake solo stocks story story_in_description submissive submissive_anthro submissive_female teasing test_subject unbirthing unwilling_pred vaginal vaginal_penetration vore vulva wandering_lizardfolk