Mystery Cupcakes

So... two plates of cupcakes appeared in the kitchen and an e-mail was floated around saying that these were for my birthday...? My birthday was two weeks ago. o_O Cupcakes are rather tasty though so I ate but now I want to know who bought them for me! So far, no one's owning up so I'm just going to imagine that they just materialized from the Rift with the help of the 10th Doctor accompanied by an expected naked Jack to distract myself from dying curiosity.