Getting vertices and indices on Android (and other OpenGL ES platforms)

Hi, I’m trying to use BEPUphysics engine with monogame. So far success so good on windows desktop, win8 and wp. But when I ported my game to android I receive exception during runtime saying that OpenGL ES VertexBuffer and IndexBuffer (in ModelMeshPart) are write-only. I need to access it’s data to retrieve vertices and indices of a model so BEPUphysics can generate bounding box for this model. Anyone have idea how I can retrieve vertices and indices without using those buffers ? Thanks