I Can't remember this game name

[mass]

-characters : one sister, one princess
-The princess has blond hair and blue or green eyes.
Not very big boobs, doing 2 times footjob, the second one was princess on the left screen footjobing to right of the screen with white socks, then same without socks.
Can someone can remember this one?

Thanks

[yudonniku]

Need more information to search for the game.

Only two heroines (a sister and a princess)?
Older sister or younger sister? (sister of main character I would assume)
Appearance of sister?
Skin color of each heroine?
Background? (fantasy vs modern world)
When did you play it?
etc.

[mass]

Thanks a lot for your answer,, and sorry to not saw your post sooner. I was starting to give up

In my memorie there is arround five heroines.
The sister seem to be as old as the main character.
The sister was grey hair , breast cup around D , her hair was half short (cut at the bottom of her head). I don't remember how was her eyes colors.
All heroines had white skin.
Fantasy in Middle Ages.
I'm not really sure when i played it but let's say near 2014

[FizzyDrink]

Can you give even more info? I can't make out anything, but I do have guess. Could it be a game called Princess Waltz?

[shinpachi]

advice : go to vndb and search the most uniqe ch traits for examble if she engages in foot job the search that or if she have a gray hair search for gray hair heroine and so on there are tags such as blood related sister or non and even to the ch traits such as calm or dark ch etc i think the only one can find this is you since you know how they look like and since you have been looking for long time im sure you can give 30 min search on here
dress since all princess wear it :https://vndb.org/i137
crown for the same reason : https://vndb.org/i586
blond hair :https://vndb.org/i5
the vndb certainly have that vn you wont be wasting your time trust me