Heidi Klum gave Victoria Beckham a year's supply of cupcakes for her birthday.The supermodel splashed out $2,000 for a dozen of the treats to be delivered to the Spice Girl's Los Angeles home every Friday afternoon for the next 12 months.Victoria - who is normally very strict about her diet - shares the cupcakes with her soccer star husband David and their three sons, Brooklyn, Romeo and Cruz.A source said: "Victoria loved Heidi's present and the whole family look forward to the delivery."Her favourite is a chocolate sponge cake with chocolate icing and dark chocolate flakes. Heidi is very popular with the Beckham boys right now!"Victoria - who turned 34 on April 17 - also believes snacking on the sugary treats will help her conceive her much longed-for baby girl. She said: "She and David are desperate to conceive and Victoria knows she needs to gain some weight in order to do so. The cupcakes should certainly help."