This is a classic...
A couple were invited to a swanky family masked fancy dress
Halloween party. The wife got a terrible headache and told her husband to go
tothe party alone. He, being a devoted husband, protested, but she
argued and said she was going to take some aspirin and go to bed and
there was no need for his good time to be spoiled by not going. So he took
his costume and away he went.
The wife, after sleeping soundly for about an hour, woke without
pain and as it was still early, decided to go to the party. As her
husband didn't know what her costume was, she thought she would have some
fun by watching her husband to see how he acted when she was not with
him. So she joined the party and soon spotted her husband in his costume,
cavorting around on the dance floor, dancing with every nice
"chick" he could and copping a little feel here and a little kiss there.
His wife went up to him and being a rather seductive babe herself,
he left his new partner high and dry and devoted his time to her. She
let him go as far as he wished, naturally, since he was her husband.
After more drinks he finally he whispered a little proposition in
her ear and she agreed, so off they went to one of the cars and had
passionate intercourse in the back seat. Just before unmasking at
midnight, she slipped away and went home and put the costume away
and got into bed, wondering what kind of explanation he would make up
for his outrageous behaviour. She was sitting up reading when he came in,
so she asked what kind of time he had.
"Oh, the same old thing. You know I never have a good time when
you're not there." Then she asked, "Did you dance much?"
He replied, "I'll tell you, I never even danced one dance. When I
got there, I met Pete, Bill Brown and some other guys, so we went into
the spare room and played poker all evening."
You must have looked really silly wearing that costume playing
poker all night!" she said with unashamed sarcasm.
To which the husband replied, Actually, I gave my costume to your
Dad, apparently he had the time of his life."