This photo shows a nude woman in front of a window. It could be any woman, but it is easy to proove that it is fact Uta:

1) Uta and Nicoló Lanfranchi, the guy you took the photo, follow each other on Instagram (her verified account is ut.ka).
2) Uta and Nicoló were in the same little Italian town on the same day (August 25).
3) Uta told Playboy magazine that she has a “Fernbeziehung” (relationship over a distance) with a guy in Italy.
4) His text to the photo is “My babe, sweet like a sunday morning”. So it shows Nicolós girlfriend.
5) This photo https://www.instagram.com/p/B1Mxp2aI31R shows Nicolós motorbike in Berlin. Uta lives in Berlin.

6) This photo https://www.instagram.com/p/B1naNE6IhJK shows Uta with obviously the same motorbike and she said in the comments she made a trip through Italy with it.

7) This photo https://www.instagram.com/p/B1ly0IEINFG (second one) by Uta shows a window from the outside that looks exactly like the window of the nude photo

8) This photo https://www.instagram.com/p/B1mHwWBonRO confirms that Uta was in Italy with a man on August 25.

9) Compare Utas body in the Playboy with that body on the photo! It fits perfectly.

Summary: Uta made a road trip through Italy with the motorbike of Nicoló one day after Nicoló posted a photo of a nude woman and Uta posted a photo of her holding a hand with a man. The solution can only be that Uta is the nude woman in front of the window.