Get completely smashed, put on your best perfume, throw a handful of rose petals on Sraaz and then kiss him. You'll regret it in the morning.
It takes five to six drinks of an alcoholic beverage with the words "strong alcohol" in its tooltip in order to become completely smashed.
IMPORTANT: YOU MUST DO STEPS 5 THROUGH 8 IN ORDER. Also, you'll have to wait for Sraaz to respawn if he's dead.