WWW- Scarlett Johansson is having a hard time getting Jared Leto out of her system. The gorgeous “Lost in Translation” star, 20, was dumped by the “Requiem for a Dream” stud, 33, because she was supposedly too young for him. Johansson quickly started seeing hunky Josh (“Black Hawk Down”) Hartnett. Leto then moved onto Ashley Olsen, who is even younger than Johansson.

But a good source claims Scarlett is sneaking out and having midnight trysts with Leto. His former conquests Cameron Diaz, Britney Spears and Lindsay Lohan might understand.

As does porn star Corina Taylor, who told radar.com she got cozy with well-endowed Leto on his tour bus in Little Rock, Ark., three years ago while he was on tour with his rock band, 30 Seconds From Mars. “I’ve been a porn actress for three years, and Jared was the most I ever had to work with,” Taylor gushed. “There’s definitely a second career available for him if he ever runs out of mainstream work.