Ed is a virgin. I didn’t know those existed – not at our age anyway. Maybe he was so drunk that he forgot all the times he’s had sex. I wish I could get that drunk. Mia and Ed have been best friends ever since they began teaching at the same school. Ed bakes cake for the staff, Mia eats the cakes. Ed can’t control his students, Mia sorts them out. Mia can’t work the photocopier, Ed shows her how. Mia’s love life might be chaotic but she’s totally devoted to her super-tidy, cat-owning, geeky but not bad-looking best friend. So, when Mia discovers Ed is still a virgin at twenty-eight, she decides to take matters into her own hands and teach him the skills he needs to seduce the pretty new maths teacher, Caitlin. It’s an education that involves panic-buying sex toys and buddy-watching porn, and when Ed graduates with an A+ for effort – and begins dating the perfect-on-paper Caitlin – Mia knows her work is done. But is Caitlin as sweet as she seems? And could Mia’s feelings for Ed be stronger than she realised?