if you are moving around a lot it's way easier to take a side photo and use the volume buttons as camera control than to try to hit the circle on the screen for the picture while in action
there's really nothing odd about it and is much more comfortable than taking a pic the regular way. gives you more stability over the phone. especially if you are taking a landscape pic.
she's already a hoe for cheating (if that's where this pic is from). no need to act like we don't know how phones work to fuel a bitter narrative.
plus if she was getting gangbanged why not just show that pic? y'all watch too much porn. imagining dikks that aren't even there and shyt