Rule34.GG

Regular all fours
anthro
big breasts
bodily fluids
bovid
bovine
breast milking
breasts
breath
butt
cattle
cowcollar
digital media (artwork)
female
hair
hi res
horn
lactating
machine
mammal
milking machine
nipples
nude
open mouth
panting
shaking
shivering
simple background
solo
tail
text
tongue
tongue out
trans (lore)
trans man (lore)