It's a hot afternoon.
HLJ is up a ladder at the behest of his beautiful wife.
He hears the doorbell, but heck, he's up a ladder. Not being sexist here, but the person not up a ladder gets the door, right?
He expects to hear familiar voices - his wife's certainly, raised in greeting. And whoever has called. So he is surprised when the first indication he gets of other people in the house is when the bedroom door opens to admit a topless woman and it's not his wife...
I guess as this involves real life people, I'll leave it there