My baby girl is a Great Dane, weighing in about 140 lbs!
She thinks she's a lap dog but I don't give her too many opportunities to "sit"
in my lap!
I also call her "the prancing pony"; it suits her quite well. When she runs, the pounding of her giant feet sound a bit like thunder!
And you should see her play soccer! The only thing, though, after running and kicking the ball,
she resorts to grabbing it in her mouth and runs off. Don't believe that's legal in a real game! :)