No, not an engagement ring – although you’d be forgiven for thinking that by the shape and size of the box that Rivers hands over! – but rather a tiny blue tablet that has the miraculous potential to boost their sex-life. Which is something that young newbie, Casey Flip, discovers when Martin Rivers drops in to present the fellow with a little surprise. Having a boyfriend who’s a courier has its benefits – not least of all the fact that he can bring you all kinds of exciting things in his delivery sack at the end of his delivery round.