‘Her Royal Hotness’ is single – and ready to mingle.

Yes, Pippa Middleton, the stunning younger sis of Kate Middleton, is back on the market, after breaking up with her long-term boyfriend, Alex Loudon, after a string of bad arguments.

The Duchess of Cambridge has reportedly been consoling Pippa, 27, who dated the hunky Loudon, 31, for three years.

All that running definitely pays off!

Pippa Middleton's short swan dress was the perfect way to show off her sexy legs on the way to work on Thursday and RadarOnline.com has all the photos.

Just two days after her 28th birthday, Kate Middleton's younger sister put on some sassy red shoes, matched it with a red Prada purse and hit the streets.

Pippa Middleton partied until well after midnight Thursday night and RadarOnline.com has photos of her leaving a club with her handsome beau at her side.

The 27-year-old little sister of Kate Middleton wore a daring short tight black skirt, showing off her toned and tanned legs, a grey blouse and a leather jacket by Sara Berman for her night out at Public Nightclub, which is owned by Prince Harry's friend Guy Pelly.

PHOTOS: Party Girl Pippa Out With Her Boyfriend

Dubbed "Her Royal Hotness," Pippa smiled as she and her boyfriend Alex Loudon were snapped sneaking out of the back of the club at 1:30 am after a night of partying.

Fresh off her revelries, Pippa donned sunglasses when she went on her coffee run Friday morning after her fun evening out.

PHOTOS: Pippa Grabs Coffee After Late Night

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After a late night on the town clubbing with her boyfriend, Pippa Middleton hid behind dark sunglasses, even though the weather was rainy and overcast in London Friday morning.

Pippa , 27 , was snapped doing ( what else!) grabbing some coffee and a snack on King’s Road on her way to work.
(That girl loves her caffeine!)

“Her Royal Hotness”  -- as she’s been affectionately been dubbed -- looked stylish, as always, in a short black and beige coat and matching beige handbag.

She did it again!

Flashing a huge grin, Her Royal Hotness Pippa Middleton was spotted running errands in London in very a familiar dress – her favorite safety pin patterned frock!

PHOTOS: Pippa Wears Her Favorite Frock Again

Pippa proudly smiled for the cameras as she was snapped Tuesday in the black dress from Whistles, a store she and her older sis, the Duchess of Cambridge Kate Middleton, frequent often, covered with a stylish black leather jacket and tan wedge heels.

Pippa Middleton looked lovely in love as she stole the show in a bright red dress while cozying up to her boyfriend, Alex Loudon, and RadarOnline.com has the photos.

Putting to rest rumors of a split, the stunning brunette, turned out to support her beau of almost a year, as he captained his school cricket team on Sunday.

Wearing the simple red dress and armed with a picnic hamper, Middleton, made the most of the English sunshine as topped off her outfit with a pair of sunglasses.