Tsubaki Yayoi x Weiss Schnee
Exactly like first reference image, Weiss is on the left and Tsubaki on the right, their proportions and expressions are the same as the girls from the first image. Minor differences: instead of spreading their own ass, they are spreading each other similar to the second image, but the hand is close to the pussy, and with their free hand they are touching the each other's tongue with their index finger, which is full of drool; and draw touching nipples. Both are naked.