Sheryl Weinstein was pretty broken up when she lost millions to Bernie Madoff, who was also her secret lovahhhhhh. But now she's telling the world all the sexy details of Bernie sexy time, in a book, for satisfaction, and riches.

Hello, the New York Daily News got a copy of "Madoff's Other Secret: Love, Money, Bernie, and Me" (out August 25!) and did a quickie read mostly looking for the sexy passages, and slapped that mutha right on the cover of the paper! And by 'mutha' we mean "Bernie Madoff had a little dick, she says."

Weinstein, who has known Madoff for two decades, said she was stunned the first time they had sex in late 1993.

"... This man was not well-endowed," said Weinstein, who was once a top executive with the Jewish women's group Hadassah and lost her life savings with Madoff

The victim's revenge! Justice is served! Weinstein clarifies, though: "When we made love, I was on fire."

Looks like the only problem was you and your small penis, Bernie Madoff! Weinstein says they liked to meet up in hotels, drink vodka, take baths, smoke weed, get massages, and then make sweet sweet love. It was so sweet that she and her friends nicknamed Bernie "Winky Dink."

Weinstein, btw, is still married, to a very understanding man.

[Also another book says Bernie slept with a bunch of secretaries, which is just further proof of Ruth Madoff's total innocence.]