FURVERT!

against_natural_surface against_surface against_tree anal anal_vore anthro anus bodily_fluids claws dinosaur erection extreme_size_difference feral forest genital_fluids genitals group head_first hug hugging_another hugging_penis knot knotted_penis larger_feral larger_male male male/male male_anthro male_feral mammal monochrome mustelid otter pandottermon partially_inside penis plant precum prehistoric_species reptile saurischian scalie size_difference smaller_anthro smaller_male tail tail_anus tailbutt theropod thick_tail tree trio tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex vore