rule 34 age difference anthro balls cervid clenched teeth clothing digital media artwork duo english text erection eyebrows eyewear fur furfragged gameplay mechanics genitals glans glasses hair humanoid genitalia humanoid penis imminent sex line art looking at penis male malemale mammal older male open mouth open smile penis retracted foreskin shirt simple background sino smile standing t shirt teeth text topwear uncut underwear underwear down unnamed old deer furfragged vein veiny penis white background younger male 3734569