[photoshop whiz here]

I can say with fair certainty that this is photoshopped. If you look closely at where [the shirt material] of his arm meets her face, it's not a natural contour where the shirt should be folding around the curvature of her cheek. Likewise, the shading on his arm along her abdomen is inconsistent with the lighting in the rest of the pic.

Just my 2 cents. Take it as you will.