Which preposition to use with pinky

in Occurrences 1%

Then he came back to Pinky in the wide-seated porch swing.

through Occurrences 1%

I saw that their hair was beginning to get shaggy, showing that they had been in the field some weeks, since every German soldierofficer and private alikeleaves the barracks so close-cropped that his skin shows pinky through the bristles.

Which preposition to use with  pinky