Batman Unmasked !

ACTOR Adam West played a cool-headed, strait-laced Caped Crusader on TV’s ’60s cult-hit Batman, but off camera and on the set, he was a sex-crazed Romeo, romping in booze-fueled orgies — with up to EIGHT gals at a time!

Adam, who passed away at age 88 on June 9 following  a battle with leukemia, took a slew of his sizzling sex secrets to the grave.

But GLOBE has ripped the lid off the handsome hunk’s outrageous bedroom antics that included “quickies” on the set and wild orgies.

Besides oodles of groupies, the twice-divorced stud’s ­Hollywood hookups included Natalie Wood and her sister Lana, Raquel Welch, Leslie Ann Warren and Jill St. John.

Wham! Bam! Secrets! Learn all of Batman's secrets in this week's GLOBE!