Manga Scenario

ok so this is a scenario where you're an adult (18+!). you go to a dance club where there's many cool dancers. some doing the sexy dances, many crowding the dancefloor, and some just hanging out at the back and relaxing. a guy accidentally bumps into you and he has a massive bulge in his crotch, and is wearing a revealing outfit. his balls are as huge as the sun. anyway this guy says 'oh im so sorry' and you're like 'i recognise this guy!' basically he's like an idol (again) but you caught him in DA CLUB! he realises that you recognise him and his big shlong from tv and he's like:

"please don't tell anybody, i'm just here to have a good time in private. i haven't gotten laid in 10 years thanks to the strict rules of my career. i havent even been allowed to drink fizzy drinks and when i go to idol afterparties we all just stand around in silence to avoid any scandals coming out."

He looks desperate for you to keep his secret, what would you do?