FURVERT!

absurd_res anthro aquatic aquatic_gastropod balls bodily_fluids catfish corruption duo erect_nipples erection fish gastropod genitals hi_res lactating male male/male male_lactation male_penetrated male_penetrating mollusk monochrome muscular muscular_anthro muscular_male nipples penetration penis sea_slug slug slugsdog tentacle_creature tentacle_penetration tentacle_sounding tentacles transformation transformation_through_sex urethral vein