Seven

These boys...

 what fascinating stories they can weave

 imaginations times two and working together

 creative and bright

 silly and sweet

  mischievous and curious

 they're a pair, they say

 what one doesn't think of, the other one will

 overly protective and fiercely defensive of each other

 each others' biggest fan

 ready to conquer the world superhero style

seven years of these spectacular boys