They are inseparable these days!

Paris Hilton and beau River Viperi made Monday their date night when they decided to enjoy a romantic meal at Il Pastaio, and our favorite heiress decided to amp up her outfit with some sexy stockings! We doubt her boy toy minded!

The Simple Life star might be looking to settle down now that she's a year older, but if her 32nd birthday bash was any indication, she's still a party girl at heart! The blonde bombshell hosted an Alice and Wonderland themed fete, and even got Lil' Wayne to put on an impromptu performance.

If these two stay together for the long haul, River better get used to life in the fast lane!

While the birthday cake was a little more representative of Paris Hilton's daily life, the themed party was a trip through fantasyland!

On Saturday Paris Hilton threw a bash at her Beverly Hills mansion, and the heiress wore a sexy Alice in Wonderland costume and treated guests to cake, 100 bottles of fancy champagne and performances by DJ Tiesto and Little Wayne.

"Last night was EPIC! #BestBirthdayPartyEver #YES!" she tweeted the next day. Sounds like she's still recovering ... Click the gallery below for more party pics of Miss P!

They look more united than ever!

On Friday, Paris Hilton and boyfriend River Viiperi showed some strong PDA as the two held hands closely while getting some food to go in Beverly Hills.

The 32-year-old socialite has been under fire recently for taking photos while her beau laid on a stretcher after experiencing an accident on the ski hills of Lake Tahoe earlier this month.

Even though it seemed as if Hilton used this opportunity to strike a pose, Viiperi sang a different tune via his Twitter account.

"I had to stitch my leg yesterday because of what happened to me while we was skiing," he tweeted. "But I'm better now and thanks to my lovely @ParisHilton who always taking such a good care of me."

Guess all is well between the two now!

After house hunting in Malibu yesterday morning, we spotted Paris Hilton and beau River Viiperi lunching at Taverna Tony. River may still be on crutches following a scary ski accident in Tahoe this past weekend, but it looks like P was able to cheer him up!

"Yay! Just found the perfect Malibu Beach House!" she tweeted. "Can't wait for the #SummerTime!"

Can't wait to see what she scooped up!

We're glad to see these two returning safe and sound to Los Angeles!

Paris Hilton and boyfriend River Viiperi traveled to Lake Tahoe for her birthday weekend (she turned 32 on Sunday), but unfortunately their romantic ski vacay was cut short when River hurt himself on the slopes!

Viiperi was taken to a local hospital after falling and cutting his leg open, and P tweeted, "Such a scary day on the slopes today. After seeing the gash on River's leg, I almost passed out. I have never seen a cut that deep in my life. He is so brave, I can't even imagine the pain he went through today."

River thanked his ladylove for "always taking such good care of me." He added, "Love U... Thank u tweeps 4 the kind words! 12 days W/ (with) stitches then back 2 'almost normal' this sucks but could have been worse. Thankful. Goodnight."

Get better!

Paris Hilton kept it simple and elegant in a skintight black dress while arriving for Topshop's grand opening party.

We're lovin' that black fur shrug and quilted Chanel purse. Thanks for the smile, P!

See which other fashionistas hit the LA party in our gallery below.

Everyone knows Valentine's Day is one of Paris Hilton's fav holidays ... in fact, she busted out a red Ferrari the day before just to cruise around town with her sexy model beau, River Viiperi!

Paris headed to a few meetings and went shopping on Wednesday, and of course she made time to squeeze in a kiss with her honey! The day before that she tweeted, "Hey everyone, Valentine's Day is only 2 days away. Make sure to get something special for your Valentine and show how much you love them." Wonder what she has planned for her boyfriend? And vice versa?

Now this is hot:

These two just loooove to go shopping together!

On Saturday Paris Hilton and her model beau River Viiperi indulged in a little retail therapy in Beverly Hills, and it sounds like this was a well deserved break! On Friday P tweeted, "Just got finished with a very long day of business meetings. So excited for all my upcoming projects!"

Guess that's how she funds all the shopping sprees!