The Hills' Stephanie Pratt is a bikini babe as she lounges poolside

There's no doubting who inherited all the good looks in the Pratt household. Spencer's little sister, Stephanie Pratt looked stunning as she lounged poolside in Los Angeles, California.

Making the most of the current California heatwave, which has seen some of the hottest temperatures since records began, Pratt rocked her itsy bitsy bikini and wide, floppy, straw hat.

Stephanie Pratt showed off her fine form as she relaxed

around the pool in Beverly Hills

The 24-year-old had taken a book with her to help while away the hours as she worked on her tan, but opted instead to spend her time texting on her ever present Blackberry.
Pratt, who has struggled with bulimia in the past, looked healthy and happy, at the perfect weight and in great shape.

The reality star shot to fame on the hit MTV show, The Hills, which ended its series run on July 13. Stephanie joined the cast in season three in 2007 as Spencer's angry sister who confronts Lauren Conrad, with whom her brother was engaged in a nasty battle of the words

Despite taking a book with her, Pratt seemed more interested in whiling away the hours texting on her Blackberry

She actually ended up befriending Conrad though, and in fact, is now fighting with her brother. Last month Stephanie claimed that she hadn't spoken to her brother in almost a year, something she says is his choice.

'In September it will be a year [since we've spoken],' she said. 'It's getting more normal and more normal.'

Animal lover Stephanie Pratt struck a pose at the Peta 30th Anniversary Gala

on September 25 in Los Angeles

She says that she is there and available for her brother though whenever, or if ever, he decides he wants to talk again. 'When he's ready to come around, I'm going to greet him with open arms,' she says. 'I love him more than anything in the world. He's my blood.'

In addition to her battle with bulimia, Pratt has also struggled with substance abuse problems.

Stephanie claims she has not spoken to her older brother, Spencer,

for nearly a year

She was arrested for a DUI in October 2009 and subsequently checked into a rehab facility for a 30 day residential programme. In an interview with US Weekly in 2007 she also revealed that she had a problem with shoplifting in the past.

She discussed one incident in which she shoplifted $1,300 worth of merchandise from the upscale department store Niemen Marcus, in Honolulu in 2006, while working as a production assistant on the hit show, Lost.