Is this joke in bad taste?

A no-good husband had been laying out, drinking and chasing women, then came
home about 3am. Knowing he would be in BIG trouble, he came up with a plan...
he'd sneak into the bedroom and perform oral sex on the wife.
THAT always made her happy. Sure enough, he snuck into the dark bedroom,
slipped quietly over to the bed and did the oral sex. She sleepily moaned
and groaned, so he knew everything was ok.
Afterwards, he went into the bathroom to brush his teeth. When he flipped
on the light, to his astonishment, he saw his wife sitting on the toilet!
"WHAT ARE YOU DOING HERE??" He yells!
"shhhh", she whispered..."you'll wake Mother!"