Image Credit: Oprah Winfrey Network[/caption]

After confessing to doping during night one of his interview with Oprah Winfrey, Lance Armstrong finally explained why now was the time to come forward in Friday night’s continuation. Watch the nearly six-minute excerpt below.

Armstrong said that what spurred him to come clean was hearing that his 13-year-old son, Luke, was defending him to other kids on social media saying, “That’s not true, what you’re saying about my dad is not true.” “And he’d never asked me. He never said, ‘Dad, is this true?’ He trusted me,” Armstrong said. Winfrey seemed to grow a bit impatient with Armstrong — she wanted to know what, exactly, he said to his son. That, too, Armstrong finally revealed. Just over the holidays, he had a talk with Luke and his twin 11-year-old girls. “I said, ‘Listen, there’s been a lot of questions about your dad, about my career, whether I doped or did not dope. I’ve always denied that, and I’ve always been ruthless and defiant about that. You guys have seen that, that’s probably why you trusted me on it,’ which makes it even sicker,” he said. “And I said, ‘I want you to know that it’s true.'”

“I told Luke, I said…” Armstrong continued, taking a long pause to fight from getting emotional. “I said, ‘Don’t defend me anymore. Don’t.'” He also told Luke that if kids see this interview and say something to him, “Just say, ‘Hey, my dad said he was sorry.'”

Additional excerpts:

Armstrong on taking his defiance to Twitter

Armstrong on feeling invincible

Armstrong on what he’s lost (he estimates $75 million)

Armstrong saying he’d like to compete again

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