Rhino, What You Did Last Summer by Ross O'Carroll-Kelly, Penguin, £12.99

With every new Ross O'Carroll-Kelly outing comes the fear that maybe this book isn't going to be as funny or as sharp or as relevant as what came before. This is, after all, Paul Howard's tenth novel chronicling the continuing misadventures of Castlerock College's best-known son. Yet Howard pulls it out of the bag again, and when Ross goes to La-la land, it's obvious that he's found the most perfect milieu in which to thrive, outside Kiely's. And, as ever, there are laugh-out-loud moments aplenty.

Having been sacked as coach of the Andorran rugby team, and following the last book's explosive revelation that Erica, object of lust, is his half-sister, Ross flees to America's west coast and a possible reconciliation with his wife Sorcha and daughter Honor (who speaks conversational Spanish and Mandarin but not English). They're shacked up with Cillian, risk assessor and all-round prophet of financial doom. When Ross is photographed leaving the Ivy with The Hills star Lauren Conrad – it's a pure fluke – he becomes hot Hollywood property, a status immediately negated when he's snapped feeding his 18-month-old daughter espresso outside Starbucks and becomes public enemy number one. But by now, he's already acquired an agent, Trevion, and a gay gym instructor buddy, Harvey, not to mention the fact that his mother's salacious literature has made her the toast of the States. There's nothing for it but to get a nose job (the rhinoplasty of the title) and abdominal resculpt and become the star of a reality TV show, Ross, His Mother, His Wife and Her Lover.

Howard captures the insanity of celebrity culture perfectly and his pop cultural knowledge is thrilling: in referencing Monique Lhuillier frocks and socialite Tinsley Mortimer, Perez Hilton has nothing on him. And as someone who knows nothing about the rugby scene, I still devoured every word. Roll on book 11, please.