Beware of The Older Woman

I ended up with an older woman at a club last night. She looked OK for a 61 year-old. In fact, she wasn't too bad at all, and I found myself thinking that she Probably had a really hot daughter.

We drank a bit, and had a bit of a snuggle, and then 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.
I said, 'No,' - excitedly.

We drank a bit more, then she says that tonight was 'my lucky night'.
I went back to her place. She put on the hall light and shouted upstairs:

'Mum, you still awake?'