rule 34 age difference anal anal sex anthro avian belly big dom small sub bird bodily fluids clenched teeth clothing domestic cat dominant duo eyewear felid feline felis from behind position germ warfare nitw glasses hairy legs half closed eyes hat headgear headwear hi res hindpaw male malemale mammal motion lines narrowed eyes night in the woods nude older male older on young orange background overweight paws penetration plap plap sound salamikii sex simple background size difference sound effects speed bump position stan borowski surprise surprised expression sweat tail teeth wide eyed younger male 8680122