![1boy 1girl aqua_bikini aratama_(a-tama) ass bare_shoulders bikini black_hair blush breasts cellphone cellphone_picture cleavage exhibitionism groin hair_bun navel nipples oppai_challenge original phone smartphone smile solo_focus sweatdrop swimsuit rating:q score:44 post #3164988](/cdn_image/preview/04/c9/04c9a0dec5592451879d1cb6150678af.jpg)
When a picture is visible on a cellphone screen. Usually seen when a character is taking a picture of someone else, or showing off a picture from their phone.
Not to be confused with phone screen, which is when the entire image is a fake screenshot of a cellphone screen, or cellphone camera, which is a specific type of phone.