United Kingdom, Oct. 1 -- Sharon Stone believes a lack of sex education led to her getting pregnant as a teenager.

The Casino actress previously opened up about having an abortion when she was younger, and she's explained it was only the fact she had gained weight that led to her and her boyfriend realising there were consequences to not using contraception.

Speaking to Michelle Obama and Craig Robinson on their IMO podcast, she said: "'Is that man bothering you? Get over here.' That was the whole extent of the conversation [about sex education from her mom].

"Imagine you're 17, you're in college, my boyfriend was 23, an engineer on the railroad, an electrician, which was, in our town, a super-high paying job. He had a fancy car, a fan...