Don Lemon to Alleged Cosby Victim ... You Should Have Been Craftier in Oral Sex Dept.

CNN's Don Lemon thinks one of Bill Cosby's alleged victims could have thwarted any demand for oral sex by just biting down hard ... yes, it's breathtaking.

Joan Tarshis claims Cosby sexually assaulted her twice in 1969, but she scared him from having intercourse by telling him she had an infection. But she says he then forced her to perform oral sex.

So Lemon looks like the cat who ate the canary as he schools Tarshis on how she could have stopped Cosby in his tracks.

Tarshis looked puzzled as Lemon said, "You know, there are ways not to perform oral sex if you didn't want to do it."

The suggestion she wanted to do it is just appalling, particularly since Tarshis claims she was stoned.