The 42-year-old actor, who is now engaged to Christina McLarty, revealed he used to romance the 39-year-old star when they were youngsters.
Speaking on 'Watch What Happens Live' last night (10.08.14), he said: ''[Drew and I] used to date when we were very young kids. Well, not little kids!
''She's just one of the sweetest, kindest people in Hollywood. She always has been, and she always will be. She's just a lovely, sweet person. We used to run around and just be silly.''
The star went on to date and marry former 'Friends' actress Courteney Cox, 50, with whom he has 10-year-old daughter Coco, but the couple divorced last year.
However, David admits the split was amicable and they remained friends for the benefit of their daughter.
He explained: ''We just really dealt with it in a very sweet and honourable way. We just love each other. Even though the relationship didn't work out, we wanted to still remain friends and treat each other with respect and have a great relationship for our daughter.
''In the negotiating process of a divorce, we did it with a mindful head, 'What are you cool with?,' 'OK, I'm cool with that, too.' There was no hair pulling.''
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