We read a lot of books to the boys (fiction and non-fiction) and this translates into how they express themselves.
T was pulling up a runner root in the garden and W came up behind him, grabbed him by the waist and they narrated or 'fictionalised' their activity:
W: ...And they pulled, and they pulled and they pulled...
T: ...but it wouldn't budge!
Me: so then what happened?
W: And they pulled and they pulled and they pulled...
T: But it still wouldn't budge!
Me: then who came to help?
T: Mum!!! And they pulled and they pulled... [at this point the runner root snapped] ... And it broke right off!