Obsessing

Okay, so I wake up in the middle of the night and am thinking about Tooley Graham copy editing and specifically:

When he heard the click clack of her heavy black shoes on the wooden stairs, he clamped a hand over his mouth to stifle a giggle. When he heard the kitchen door swing open, he clamped his other hand over his mouth, his shoulders shaking with a silent laugh.

And then I think:

Wait! Heavy black shoes don't go click clack.

Heavy black shoes go clomp, clomp.

But you can't use clomp and clamp in the same sentence.

So.....maybe.....

When he heard the clomp clomp of her heavy black shoes on the wooden stairs, he slapped a hand over his mouth to stifle a giggle. When he heard the kitchen door swing open, he slapped his other hand over his mouth, his shoulders shaking with a silent laugh.

What do y'all think?