Rule34

1:1 absurd res after penetration age difference anthro anus asriel dreemurr ass balls bed bedroom bedroom sex big balls big breasts big butt big penis bodily fluids bovid breasts caprine christmas christmas clothing christmas decorations christmas headwear city cityscape clothing costume cum duo elf costume elf hat femboy fur furniture gaping gaping anus genital fluids genitals goat hat headgear headwear herm hi res holidays incest (lore) intersex intersex/male legwear looking through looking through legs lying lying on bed male mammal mature intersex moan mother (lore) mother and child (lore) mother and son (lore) on back on bed open anus parent (lore) parent and child (lore) parent and son (lore) penis santa costume santa hat sex size difference sleeves smile son (lore) stockings thick thighs toriel tutacamon27 undertale undertale (series) white body white fur window