[Shaun]

"Nós somos como as lésbicas bonitas." Morgan purred, as she bit into some asparagus teasingly.
"Eu sei. Eu só queria poder extrair-lo novamente." Melanie whispered, pouring another glass of red.
The conversation soon turned to death. Morgan was 99% the murderer couldn't be her lover, but in a game as deadly and unrelenting as this you couldn't always be sure. Melanie caught the doubt in her eye and placed down her fork, hurt.
"Eu nunca iria matar ninguém, antes de fazer amor com você, Jezebel lindo." She hissed, necking down the rest of her wine.
"THIS RELATIONSHIP IS A SHAM!" Morgan screeched, causing an old lady on the adjacent table to choke on her caviar. She was the Killer's 7th victim.
There was a moment of hatred between the young lovers. But it was not enough to replace their passion, and they began making out under the table.

The maitre d' had decided such an exhibition were inappropriate for his clientelle, unless they were willing to pay. He passed them their after-dinner compliments: some fortune cookies. Morgan and Melanie locked arms and opened them together.
"You're going to shag someone special tonight if you don't, like, fall over and require stitching or sommat." Melanie blushed.
"M.S. ; M.G. ; N.S. ; S.D. ; M.W. ; L.M. ; J.C. ; N.P. ; S.W." Morgan read, confused, before finding an extra piece of paper. "You're free to go."

The pair necked a glass of champagne and returned to the Headquarters with their clue...and their heads intact.