Ace of Spades joke

 A friend met an older woman at a bar last night.

He said, “She looked pretty good for a 60-year-old. In fact, she wasn't too bad at all, and I found myself thinking she probably had a really hot daughter.

“We drank a couple of beers, and she asked if I'd ever had a Sportsman's Double?

“'What's that?' I asked.

“'It's a mother and daughter threesome,' she said.

“As my mind began to embrace the idea, and I wondered what her daughter might look like, I said, 'No, I haven't.'

“We drank a bit more, then she said with a wink, ‘Tonight's your lucky night'. We went back to her place. She held my hand as we walked up the stairs.

“She stopped at the first door, knocked lightly, and said, 'Mom...you still awake?'”(H/T Hrothgar)