All credits should go to this steam thread.

https://psteamcommunity.yuanyoumao.com/app/540610/discussions/0/276237094328203987/

Download the file.

https://drive.google.com/file/d/0B1DgUkj_DP_wdDhRbERJQ1Nkbjg/view?usp=sharing

On steam client.
Go to the Library.
Right Click on Delicious! Pretty Girls Mahjong Solitaire.
Left Click on Properties.
Left Click on Local Files Tab.
Left Click on Browse Local File.
A new window should open.
Click on DeliciousPGMS_Data folder.
Unzip the nude patch to DeliciousPGMS_Data folder.
Play the game.

This is where where the nude patch should be place. The location path might be different from yours.

C:\Program Files (x86)\Steam\steamapps\common\Delicious! Pretty Girls Mahjong Solitaire\DeliciousPGMS_Data