rule 34 169 2023 4k absurd res anthro anus armlet ass backsack balls bed big muscles blue dragon series blush detailed background duo erection facial hair fangs felid furniture genitals hair hi res humanoid genitalia humanoid penis imminent oral imminent sex long hair looking at genitalia looking at penis looming over lying machairodontine male malemale mammal muscular muscular male muscular thighs on back on bed pantherine penis quads rear view red eyes ross rossciaco saber tiger blue dragon sabertooth anatomy seyrmo smilodon spread legs spreading teeth thick thighs tongue tongue out vein veiny penis widescreen 8360961