Taylor Swift: How I'll Celebrate My 21st Birthday

Taylor Swift will turn 21 on Dec. 13, but she isn't planning a wild night out to celebrate reaching the legal drinking age.

Instead, she's going to stay home and mark the milestone with a holiday party.

"I definitely want a winter-themed birthday – Christmas-themed," she tells PEOPLE. "And I'd really like to have it in my condo. I think that would be wonderful."

Though Swift says she's "not, by nature, a party girl," turning 21 will help her social life.

"It'll be cool that I'll be able to go to a lot of concerts that my friends always go to and I sit at home because it's 21 and over," she says. "Other than that, I don't think I'm going to all of a sudden start being in love with the idea of going to a club."

But that doesn't mean she doesn't like to have a good time. "I like to dance around and have fun with my friends and we have a blast, but I've never felt really compelled to be drunk and I don't think that's terribly awful," she says, but "I'm not one of those people who's never going to have a drink."

While Swift was open about her party theme and drinking legally, there is no word on whether new beau Jake Gyllenhaal will be on hand to help her celebrate with a cocktail or two.

Credit: People

Karissa & Kristina Shannon's 21st Birthday Bash

Making for quite the reason to celebrate, twin sisters Karissa and Kristina Shannon rang in their shared 21st birthday with a booze-fueled party in New York City on Friday night (October 1).

The Playboy beauties - who turned 21 at midnight - first went to dinner at Via De Mille restaurant in SoHo before heading to their very own party at Greenhouse nightclub.

Definitely not a PG affair, Kristina was going wild as she danced around barefoot while drinking straight from the bottle alongside her sis.

Meanwhile, Karissa looked delighted as she unwrapped a gift from her boyfriend Sam Jones III - as her man doted her with a pair of Christian Louboutins which cost a cool $1495.

Credit: Celebrity Gossip