https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_654097/
https://www.dlsite.com/maniax/work/=/product_id/RJ01455373.html

Base +25, nuts987 +14

[Synopsis]

''Your job is to milk a slutty cowgirl with huge breasts.''
The main character is a zookeeper who works on a farm where cowgirls live.
His job is to milk Bonyu, a very slutty cowgirl with big breasts!
But the zookeeper's job doesn't end there...
He has to have lots of sex with the horny cowgirl to relieve her sexual desires, have sex with her to increase her milk supply, drink breast milk directly from her breasts and then have sex with her again.
It's a lot of hard work!

This erotic story is all about having sex with the cowgirl and drinking her milk!
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Where does one apply for such a job?
Asking for a friend... (͠≖ ͜ʖ͠≖)

Base +28, nuts987 +14