Ozzie humour.

A FRUSTRATED wife bought a pair of crotchless panties in an attempt to spice up her sex life.
She put them on with a short skirt and sat down on the lounge opposite her husband.
After a few minutes she spread her legs until the husband finally looked at her and asked,
“Are you wearing crotchless panties?”
“Yes, I am,” the wife replied with a seductive smile.
“Thank f$#k for that,” said the husband, “I thought you were sitting on the cat.”