With just weeks to go before welcoming her first daughter, Kourtney Kardashian is betrayed again by boyfriend Scott Disick. Scott's childhood friend Donald Blanco says in the new issue of Life & Style, on newsstands now, that the soon-to-be father of two is the star of nearly 10 seedy sex tapes.

"Scott was obsessed with sex," Donald, who shot some of the racy encounters and has seen the lewd videos in full, tells Life & Style. "He loved it."

For three years, Scott, his pal Donald and two other friends engaged in intercourse with hundreds of women in New York's Hamptons and filmed some of the action. All this occurred just before Scott linked up with Kourt, Donald spills.

Flashing strangers, skinny-dipping in pools, getting intimate with blondes in hot tubs and even engaging in orgies with his buddies, Scott was known as the exhibitionist of the rowdy posse. "We'd bring back different groups of girls to one of our houses and do various things to them," admits Donald, who alleges that while protection wasn't always used, alcohol and marijuana sometimes were -- and could have clouded the judgment of the females on the tapes.

"We tried to make it a daily routine, and some nights would be taped. There's probably a good eight or nine tapes."

"We thought, If we start videotaping ourselves, maybe one day we can make a TV show out of it," he tells Life & Style. "Now Scott's on a reality show. He was always trying to make it to the top. "

Although Donald is quick to admit that he believes Scott has changed, he hasn't given up on his wild partying ways.

In fact, Life & Style has learned that instead of making an appearance at Kourtney Kardashian's baby shower on May 12, Scott flew cross-country to host a debaucherous party at Harrah's Resort in Atlantic City, N.J.

Starting the bash early in the day with poolside beers, Scott leered at scantily clad clubgoers and drank until 2:30 a.m. on May 13 -- Mother's Day. "He was wasted," a fellow reveler tells Life & Style. No doubt hungover, he didn't make it back for the Kardashian family lunch at The Ivy in LA.

Photo credit: Startraks; Spanx

"It was so much fun; it was elegant but with a lot of great energy in the air," a friend of the couple tells Life & Style. "There were about 300 people; most of Will's friends were at the party, and Drew Barrymore's celeb friends, including Cameron Diaz, Lake Bell, Scott Campbell and Edward Norton and his date, attended."

"They rented the roof with a bar," the friend adds. "It's a large space, modern with a lounge atmosphere. It was low-key, not over-the-top. There were a lot of appetizers passed around and a buffet with shrimp, pasta, ravioli, and brownies and chocolates for dessert."

The party even went longer than planned!

"The invitation originally said 7 p.m. to 10 p.m., but Drew and Will ended up extending until 12:30 a.m.!" a source reveals to Life & Style.

As soon as Drew arrived around 7:15 p.m., she was ready to get the engagement party started.

"Thanks again you guys for all your help," she was overheard telling the staff. "It's going to be a great night!"

And a great night it was.

"Lots of guests were mingling and taking photos of the view," an eyewitness tells Life & Style. "The music was upbeat, and there was a lot of laughter. It totally seemed that Drew was the life of the party."

The pregnant bride-to-be and her beau couldn't stop gleaming.

"They were super cute together and affectionate," the pal says. "He was very protective of her and kept an eye on her all night, catering to her, and taking a lot of time to introduce her around. He had his arm around her and held her hand."

Even Will's family couldn't get enough of their soon-to-be daughter-in-law and sister-in-law.

"Will's dad was very nice to Drew and introduced her to a lot of people," the friend tells Life & Style. "Will's sister Jill was very sweet to Drew and introduced her to a lot of her friends. They seemed close."

As Life & Style first reported, Drew Barrymore is expecting her first baby, a girl, and is set to marry on June 2 at her home in Montecito, Calif.

"I saw Drew patting her stomach; she looked so happy with Will," the friend adds. "She just glows."

The child will be the first for Will and Drew, who's been married twice before. She wed bar owner Jeremy Thomas in 1994 and comedian Tom Green in 2001.

Photo Credit: Startraks

With her Skinnygirl empire and baby Bryn at home, Bethenny Frankel doesn't always have a lot of time to dress up for the photogs. But luckily, she doesn't need it: On May 1, the Skinnydipping author went from her everyday mom look to full-on glam in just two hours!

How does she do it? With a little prioritizing. "Don't drive yourself or others around you crazy," she tells Life & Style. "Having an outfit ready from head to toe, including jewelry and accessories, is crucial." From there, Bethenny maneuvers around Bryn, who likes to play in Mom's makeup drawer, and finishes off with tinted SPF, a lip-and-cheek stain ("It's good for multitasking," she explains) and Skinnygirl Body Shimmer on her legs. Voilà -- from Housewife to hot mama with enough time to kiss Bryn good night!

The mom of two sons had her first baby girl on May 13 at 12:40 p.m. ET.

"The boys just came and met their baby sister -- what an amazing Mother's Day, so full of miracles," Rosie tweeted.

"Our healthy and beautiful baby girl weighs 7 pounds, 9 ounces," Rosie told Life & Style about the family's happy addition. "[My husband] Daron and I are doing well and so in love with her, as are her older brothers and our extended family."

Photo credit: Bravo