Steaming Hot Ass (+2 Versions)
Character: W
Series: Arknights
Themes: Wet, Ass, Pussy, Stockings, Ripped
Source (updated)
Saucenao is your best friend for situations where you have trouble with finding the original source!
Thanks my friend, that had totally escaped me.
Happy to help! It's a pretty great tool.
If you also have an android device you can use the Google Assistant to do a reverse image search as well, but sometimes it's not as thorough as Saucenao.