Fully dressed, Simon headed back down the stairs, and re-entered the living room. It was a lot less crowded now. Simon wondered how many people were upstairs, making the most of their first college party in Gemma's various bedrooms.

He glanced out the window, and realised for the first time that Gemma's garden had a pool in it. Several people were in the water, and a few more were sitting in swimwear on a couple of poolside deckchairs, chatting. One pair of girls were entwined in each other's arms on a chair to one side, passionately making out. It didn't look like their bikinis were going to stay on for...