noun
photo of two people; couple photo
Typically refers to a photograph of a man and a woman together, often implying a romantic context. The term ツーショット alone can also mean a two-shot, but ツーショット写真 specifies the photo itself.
See also: ツーショット
彼女と初めてのツーショット写真を撮った。
I took my first couple photo with my girlfriend.
SNS
It's a bit embarrassing to post a photo of just the two of us on social media.