The advice that a woman shouldn’t sleep with a man on the first date may seem old-fashioned, but Dr. Wendy Walsh says it’s a notion that couldn’t be more modern. In fact, the author of “The 30-Day Love Detox,” says you should wait exactly that, 30 days.

“The truth is, you want them to leave in the first 30 days,” she told Ali. “It’s about getting rid of the ones who are not gonna fulfill you.”

She then dropped the stat that, if one hundred men, age 18-24, go on a first date on a Friday night, 20 percent of those dates will end in sex. Dr. Walsh said she still thinks that’s too high, but “what I hear from that is that 80 percent of women are smart enough to expose their eggs and their bloodstream to somebody they don’t trust.

“But,” Ali asked, “don’t you think sexual compatibility is important?”

Dr. Walsh replied that doesn’t think sexual chemistry is necessarily the biggest factor in a healthy, happy relationship. “One study of 2000 couples showed that the hotter the sexual chemist

A few weeks ago, we were reading the entire internet (as we do every day at Daily Shot) and we came upon the Cuddly Cavies Creations website. We showed it to Ali, who has two Guinea Pigs at home: life partners named Archie and Lenny.

We realized instantly that we needed to have a fashion show. So we called up Project Runway’s Tim Gunn and Supermodel Paulina Porizkova to see if they’d be willing to come by and judge. Much to our surprise, they were.

Cuddly Cavies Creations was gracious enough to provide couture for our evening wear, haberdashery, and swimsuit categories. And after carefully reading the safety and comfort instructions they sent, we gave Archie and Lenny a fitting to make sure they’d be ok with this whole crazy idea. They agreed to it as long as Ali would make their favorite kale salad.

The boys worked their look on the runway, but to see who really wowed the judges, check out today’s episode of Daily Shot! And to see the winner’s fashion spread, check out our Facebook

Recently a Princeton alum wrote a controversial letter urging young Princeton women to find their husbands on campus, and fast. Ali invited her friend Lee Woodruff, author of ‘Those We Love Most,’ to talk about how young is too young for marriage.

Ali met her husband in her mid-thirties, and Lee met hers in her mid-twenties, they both agreed that men and women need to reach a certain level of maturity before they get married.

“When I think of the people I was dating in college,” Ali said, “I wouldn’t still be married today.”

[More from Daily Shot: FIVE TIPS FOR A SUCCESSFUL FIRST DATE]

“All those biker boys you were shacking up with? Not marriage material,” Lee agreed.

Then Ali accused Lee of cheating on her husband, and Lee shot back that she was cheating on her husband with Ali’s husband, but that’s not important.

[More from Daily Shot: MARRIED NAMES VS MAIDEN NAMES]

But as for the notion that college was the best place to meet the person you’ll spend the rest of your life wit

For Mother’s Day, Daily Shot asks the questions: which piece of Tupperware goes best with Beyonce? Or Gwyneth Paltrow? Aunt Barbara, the top-selling Tupperware salesperson in all of North America, joins Ali for a special celebration of Mother’s Day.

Watch as Ali surprises Barbara with the name of a Celebrity Mom, challenging her to come up with the Tupperware product that most accurately represents the famous mother.

Which celeb goes with a silicone spatula? Which leading lady needs a pink bowl that holds up to 42 cups? And what did Aunt Barbara get Ali for Mother’s Day? Find out on today’s episode of Daily Shot!

Fredrik Eklund of “Million Dollar Listing New York” stopped by Daily Shot to tell Ali about the new season of the show, which premieres tonight, and to dish on the most common thing sellers do that makes his job difficult: own pets.

“I have dogs myself,” the real estate broker to the stars says, “but it’s hard as a broker to come in--you hear the barking, you see the hair, the cat litter. Dogs and cats are not the best thing.”

He ‘100 percent’ agreed with Ali’s suggestion that sellers, “get your pets out of the apartment if there’s a showing and light a candle.”

Fredrik showed us two of the luxury homes he’ll be selling this season, which, he says, “has lot of deals, and is also very confrontational.”

To see pictures of the incredible properties, and hear about the unique home-selling strategy that’s helped Fredrik close over a billion dollars in deals, check out this episode of Daily Shot!