rule 34 angry anthro balls big penis black hair bodily fluids clenched teeth closed eyes clothed clothing cum cum on chest cum on self cumshot digital media artwork dragon ejaculation erection genital fluids genitals gradient background hair hand on penis horn long hair male male penetrated masturbation moan mostly nude muscular muscular anthro muscular legs muscular male nervous open clothing open shirt open topwear orgasm orgasm face orgasm from handjob partially clothed penetration penile penile masturbation penis purple body riska artist scalie shirt simple background sitting solo spread legs spread wings spreading teeth teeth showing text topwear uniform vein veiny penis wings 4503087