Monica Lewinsky explains how her dress got stained. 

“And so we moved to the bathroom and were more intimate. There was some attention paid on me and then I was reciprocating, where up until that point he had always stopped before completion on his part,” Lewinsky said, delicately trying to explain their encounter.
“I sort of stood up and said I wanted to move past that stage and so he finally said OK.”
That’s when the dress was soiled, but Lewinsky didn’t notice at the time.
“So that finished and then I hugged him after. And he hugged me,” she said. “And off I went.”
In 1998 grand jury testimony, she said she initially thought the marks on her dress “could be spinach dip or something.”

Monica Lewinsky

Wish I had thought of that, “Honest darling, it tastes like spinach dip!”

Sensitivity is a slogan on a condom wrapper.