The Idea would involve Nico Robin and would be animated in a swf.
She has her post skip design, be it the hair and whiter skin.She isn't wearing her glasses.
Here's a picture of post skip Robin that could be reference for the face/hairs (but a more normal ear) :
External
She is wearing the dress she wore on Punk Hazard :
Image
Here is a resembling Nico Robin on this website (face-wise) :
Naruto_fuck_Nico_Robin_in_library_Robin_ride_on_naruto_while_she_is_reading_book_Her_face_all_red_and_she_enjoy_it
The scene is a POV scene.We are *****ing and when we open our eyes Nico is here (we assume she sneaked under the blanket by the side where out feet are).We are on a ship and the bed is in the corner of the room so only brown walls everywhere would be enough, with just on the left side a round window that shows a blue sky.The scene is in daytime probably in the morning.The blanket color is orange/brownish and sheets are white
Now for Robin's position.Here is a rough example ( this isn't true pov so beware) :
Image
But there are differences.The blanket isn't on her head.No, it doesn't cover her head at all nor her shoulders.It is covering her back and everything behind it.Her head and arms will be visible.
She is lying on the bed and our legs aren't very spread apart, and so as her body is lying between our legs, her arms are kind of taking support on our very lower hips (around the penis region).Her head is almost exactly above our penis that is hidden by our pants, just a little bit (few centimetres) on the left and back (so on our right from pov perspective).We can see parts of her dress (see the earlier reference) around the breast region.Her breasts are kinda flattened by the region around where our balls ends, because of the lack of space between our own legs for them to rest.We don't see any nipple obviously because of the dress, just her cleavage but we can imagine that she is packing some serious breast size.Like at least Tsunade level for reference.
Contact me for more information about her initial position.
So it is a POV and from the bits we see from the guy, he would probably be an average 175/180cm and isn't muscular.He isn't hairy.
She is looking at us with this kind of expression (like serious and candid at the same time) :
External
Her eyes then begin to look at the penis region.We are wearing blue pants.What she sees is a massing boner hidden by the pants.
Now where the animation starts.I am not sure what is the more convenient, but if we imagine the pants has some kind of zip it might be easier.With her left or right arm (doesn't matter), she would unzip the pants and the Penis would come flying out and hit her face close to her right eye then take it's final position just a little bit in front of her nose/right eye (on our left from pov perspective).In case you show some skin down there, there is no pubic hair at all.
Now Robin is blushing.
This is an uncut Penis.So the tip is almost fully covered.
What happens is that she grabs it with her right arm and pulls the skin part covering the tip down, as to pull back the foreskin
Here is an example :
External /
See the skin moving.Maybe some seminal liquid are showing.She does it slowly.
Now her eyes are watching at us again and she stopped blushing.And next, with her right arm still on the penis, she gives a gentle lick, from down to up.
She is as gentle has possible, as slow as you can manage it.
And this would be the end.Now I am no expert, far from it, but wonder if it will be possible to use the animation where she pulls back to foreskin and at the end have it start again but loop by reversing the two movements to make it seem like an handjob?
And looping the licking animation too the same way, and the eyes too so they switch from the penis region to our eyes?
If possible this should be done.
Now do not forget it is in pov, the camera never switches position (zooms aren't needed I think) and proportions should be as good as possible (not some weird small head).The largest resolution possible would be appreciated too.