By NADIA MENDOZA
Butt of the joke: Caggie and Spencer sit among cigarette ends on the pavement
Her annual school fees cost a yearly salary, but Caggie Dunlop bid farewell to her posh upbringing last night.
The Made In Chelsea star sat drunkenly on the pavement outside the Mayfair Hotel, sitting on the concrete surrounded by cigarette butts.
She seemed oblivious to the fact she was perched on the floor instead of a throne, as she cosied up to love interest Spencer Matthews.
Spencer, who also appears on the E4 reality show, looked delighted with the attention and reciprocated by putting an arm around his friend.
The pair, joined by co-stars CJ Chapman and Hugo Taylor, wiled away the hours drinking at the Slazenger party, before heading to Funky Buddha.
Caggie, an aspiring singer, has a 'Ross and Rachel' friendship with Eton-educated Spencer.
Their 'will they/ won't they' romance has been a prominent storyline in the first season of the programme.
But last night, the couple only had eyes for each other and seemed oblivious to fellow partygoers.
Eyes only for each other: Spencer and Caggie are oblivious to anyone else
The blonde Sloane looked elegant, albeit a little windswept, when she headed out for the evening.
Dressed in a short white dress, she kept her long legs under wraps beneath an ankle-length floral coat.
But towards the end of the night, she was stumbling around and flashing more than she intended to by striding along with her knickers on display.
This morning, Spencer implied it had been a heavy night with an early tweet at 6.30am.
He wrote: '@hugo_london Death.. Thank god it's friday.. So much love for you.. x'
Fag break: Spencer and Caggie stand outside as they talk among the smokers
Windswept: Caggie faced a stiff breeze in her little white tunic
Spencer's latest conquest could be a public display of revenge for his ex Chloe Green.
The former PR manager, now a broker, reportedly dated the Topshop heiress before she rather incestuously moved on to another lover in their friendship circle - Spencer's bisexual Made In Chelsea co-star Ollie Locke.
Sir Phillip's daughter and Spencer, who have been friends for years, are believed to have cemented their relationship in Monaco last month when they attended the Grand Prix together.
Former flames: Chloe is believed to be Spencer's co-star Ollie Locke
Other guests in attendance were former No1 tennis ace John McEnroe and presenter Jameela Jamil.
The T4 host tried her best to get noticed by wafting a racket around in a 'look at me' spectacle.
Slazenger party: Jameela sneaks into a picture with tennis champ John McEnroe
Off with her shoes: T4 presenter whips off her heels to wave a racket around