rule 34 2020 animal genitalia animal penis anthro biceps black body black skin blue body blue skin diphallism erection flexing genitals hemipenes hi res horizontal diphallism looking at viewer male multi genitalia multi penis multicolored body multicolored skin muscular muscular anthro muscular male nintendo orange spikes patreon pecs penis pink penis pokemon species pokemon pose redponei signature simple background solo spikes swampert tapering penis two tone body two tone skin video games white background white body white skin yellow eyes 4470172