It makes your dick look bigger.

'COCKfishing' becomes the latest way to con people on dating apps, as women reveal guys have sent them photos of other men's penises to make themselves seem more appealing

https://www.dailymail.co.uk/femail/a...dia-users.html

COCKfishing:the act of sending photos of a penis that is not yours to unsuspecting women or gay men who have no idea until its too late.