Who's in the running for top dog ..?

I think it's becoming increasingly clear which dog is going to be the dominant one. Zoe initially took the line of least resistance when Megan started invading her bed or her position on the sofa and just moved away to seek solace elsewhere. From about the second week she was quite happy to let Megan play with her and now frequently they roll around the floor together. However, she was stand-offish about her sleeping quarters. This week she has given up any resistance and now submits to the indignity of having a puppy sleep all over her. The point is that Megan is the feisty one and just refuses to accept a brush off until Zoe in the end just caves in.