Tamara wears sexy red dress for Valentine's Day as Petra dresses down

London, Feb 16 (ANI): Tamara Ecclestone put on her best designer frock for a Valentine's date with her boyfriend Omar Khayami, while her younger sister Petra decided to spend it in casual attire.

The 27-year-old socialite was snapped arriving at a private members' club in London's Mayfair last night.

The heiress looked very pretty in a short dress with vertical stripes by Alaia as she stopped for pictures outside Annabel's.

She aptly settled on red, the colour of love, to spend the romantic night with her stockbroker boyfriend.

Tamara teamed the dress with towering rose gold peep-toed Louboutin heels and a matching clutch bag.

However, just like any girl whose wardrobe is bursting at the seams with a fabulous collection of clothes, Tamara was undecided what to wear until the last minute.

She even took to her Twitter page to talk about her dilemma with her tens of thousands of followers.

"Omar is taking me to Anabelles for dinner tonight love it there so romantic. Just need to decide what to wear! Can't decide whether to wear red or pink?" the Daily mail quoted her as tweeting.

Once dressed and ready, she tweeted again.

"Decided to wear red Alaia dress and rose gold Louboutin shoes and clutch feels very Valentines day appropriate!" she said.

Meanwhile, Petra was seen in Los Angeles leaving Italian eatery E Baldi in Beverly Hills.

The 23-year-old was dressed down in white skinny jeans, hi-top sneakers with multi-coloured Velcro fasteners and a light pink jumper.

She teamed the casual look with an Alexander McQueen pink skull scarf, large black sunglasses and a mink-coloured bag.

Petra was with her entrepreneur husband James Stunt as they left the celebrity hang-out with a female friend.

There was no passionate and public display of Valentine's affection from the pair as they went their separate ways.

Petra gave her husband of six months a peck on the cheek before she got into her waiting car. (ANI)