Some time later the Doctor called to check on their progress and their son answered the phone. When asked how everyone was doing, the boy replied, "Mom's dead, Sis is pregnant, my ass hurts, and Dad's outside yelling 'Here, kitty, kitty!'"
Hourigan says oysters are extremely high in zinc, which is important in raising testosterone levels in men (although it's unlikely any testosterone-raising effect would be immediate).
However oysters also contain varying levels of dopamine, a neurotransmitter that stimulates the 'arousal' centre in the brain (which governs among other things, sexual arousal) and this action could feasibly occur straight away.
"When we eat oysters we actually raise the level of that chemical in our system."