FURVERT!

4_fingers ambiguous_gender anal anal_fingering anthro anus backsack balls biped butt canid canine countershade_fur countershade_tail countershading duo erection fingering fingering_partner fingers foreskin fur genitals glans hi_res humanoid_genitalia humanoid_penis interrobang male male/ambiguous male_fingered mammal nekowuwu penis sex tail