rule 34 2019 abs anthro areola ass balls big balls big muscles big pecs big penis biped blue markings brown areola brown balls brown fur brown nipples brown penis brown skin butt from the front butt markings ear piercing erection facial hair facial markings fangs front view frown fur glans green background grey fur hair hairy hairy balls half length portrait hand on leg haplorhine head markings head tilt hi res humanoid penis industrial piercing kougatalbain light lighting lips looking at viewer male male only mammal mandrill markings monkey multicolored fur muscular muscular male narram navel nipple piercing nipple stud nipples nude old world monkey partially retracted foreskin pecs penis piercing pink glans pink lips pink nose portrait prick ears primate pubes red eyes red hair serious shadow short hair simple background sitting solo spread legs spreading stare two tone fur uncut urethra watermark white background yellow sclera 3404591