FURVERT!

1:1 ambiguous_gender american_opossum anthro asphyxiation bdsm bite_mark blood blood_in_mouth bodily_fluids bondage bound breath_play choking gradient_tail hands_behind_back hands_tied hands_tied_behind_back hi_res hybrid knottytracker mad_maddox male mammal marsupial mastectomy_scar murid murine nipple_piercing nipples nosebleed piercing rat rat_tail restraints rodent rope rope_bondage rope_harness scar solo tail