Benny Blanco wants to give everything to fiancée Selena Gomez, including the experience of the high school prom that she apparently never had.

Benny Blanco wants to give everything to fiancée Selena Gomez ... Blanco stands nearby in his tuxedo. Gomez later walks down the steps in her prom dress, a fuschia high-low gown with black ...

Credit: Getty Images Benny Blanco just gave Selena Gomez the prom night ... walks us through the entire night, from Gomez's glam prep to the big prom dress reveal. And while the whole thing ...