[Req] A Scratching Cow 3 (Patreon)

previously: https://www.patreon.com/posts/req-scratching-2-72182807

A requested sketch for Krek!

Thank you!

**scratching post ref from Farmthis's work

(This is done through Pixiv's paid request system. Click "Accepting request" on my Pixiv page to see details  )