20253d_(artwork)anthroanthro_penetratedballsbig_penisdigital_media_(artwork)duoenglish_descriptionerectiongeckogenitalsgex_(series)gex_the_geckogreen_bodygreen_scalesgrey_backgroundholding_penishumanhuman_on_anthrohuman_penetratinghuman_penetrating_anthrointerspecieslizardmalemale/malemale_penetratedmale_penetratingmale_penetrating_malemammaloraloral_penetrationpenetrationpenispenis_in_mouthreptilereptilligatorscalesscaliesexsimple_backgroundtongueveinveiny_penisyellow_bodyyellow_scales