Brother Versus Sister

He said YES

She said NO

He said TO

She said FRO

He said WEAK

She said STRONG

He said RIGHT

She said WRONG

He said DO

She said DON'T

He said WILL

She said WON'T

He said HORSE

She said COW

He said ZAP!

She said POW!

He said YOUNG

She said OLD

He said HOT

She said COLD

He said A

She said B

He said SHE

She said HE

He said DOG

She said CAT

He said THIN

She said FAT

He said FLIP

She said FLOP

Till Mum said

STOP! STOP! STOP!