Rule34https://rule34.xxx/index.php?page=atom&tags=anthro barely contained bent penis biceps big biceps big penis boosterpang bulge canid canine canis clothing colored domestic dog edit flex flexing full body fur furry half-erect hi res huge cock humanoid penis hyper hyper muscles looking at viewer male male only mammal muscles muscular muscular male penis penis base red penis serratus anterior smug solo solo male spots spotted fur thick penis throbbing tight clothing vein white background2024-05-06T17:09:17ZRule34