I have a pair of big full white panties, and I'm going to see just how much they can hold! I tape up the legs and proceed to fill them with cream, eggs, custard, jam, rice pudding and yoghurt, until it all starts to run down my legs. I end by scooping up some of the mess and putting it back inside my underwear, then giving myself a huge messy wedgie from both front and back!
(I've wanted to film this video for ages and you can tell just how much fun I'm having while I do!)