Royal Bombshell! Markle Family Hooker & Drug Scandal Explodes

Meghan Markle’s despicable dad is a big, fat liar!

That’s the shocking claim of Thomas Markle Jr. — who alleged their father, Thomas Markle Sr., isn’t telling the truth about his hanky-panky with hookers and illegal drug use!

Sources told RadarOnline.com exclusively that Meghan’s dad, 74, insisted although he visited sex clubs, he never paid prostitutes for sex and admitted only to the “occasional sniff of cocaine.”

But now, Thomas Jr., 52, has blasted those fishy claims as outright lies — and revealed his father even boasted to him about his sexual conquests!

“My dad told me about his trips to Thailand when we were out having a couple of beers,” Thomas Jr. told RadarOnline.com in an exclusive video interview.

“He said, ‘You can get two women for the weekend for 50 bucks. The things they will do to you are incredible. You’ll be a changed man.’”

According to Thomas Jr., his father made his overseas sex trips in the early ’80s while married to Meghan’s mother, Doria Ragland.

Thomas Jr. lived with his father, Doria and Meghan when Thomas Sr. disappeared on his XXX-rated tours — and revealed the cheating creep sent packages to his conquests overseas. Thomas Jr. joked Meghan may even have half-brothers or sisters in the Far East!

Even more disturbing, Thomas Sr. — who worked as a lighting director on the daytime soaps “General Hospital” and “Santa Barbara” and the prime-time sitcom “Married … with Children” — didn’t bother to hide his drinking and drugging, according to his son.

Now, Thomas Jr. — who passed a lie detector test to prove he’s telling the truth — has urged his father to sit for the same exam to clear his conscience.

“My dad is a liar!” he declared.

Addressing his father, he added: “I took a polygraph test, now you need to do one!”

Thomas Sr., who lives in rundown Rosarito, Mexico, claims he doesn’t drink and his drug use is behind him.

But as RadarOnline.com has reported, he’s frequently seen with a meth addict, Lori Davis, and has treated her like a daughter, loaning her thousands of dollars.

Meghan, 37, cut off all contact with her father before marrying Prince Harry in May.

Now, royal insiders said Harry, 34, is sure to be appalled by the latest revelations about his father-in-law’s sleazy past — and they could jeopardize his fairytale marriage to the former “Suits” star!

“Queen Elizabeth has spoken in private to Harry,” said a palace insider. “She’s asked him if he wants to continue with his marriage. This could be grounds for divorce!”