Belgrade - A Serbian man needed emergency surgery after sticking a pencil inside his penis to keep it stiff during sex.

Zeljko Tupic, from Belgrade, told doctors he had experienced erectile difficulties in the past.

So as he prepared for a night with his new lover, he decided to insert a thin pencil into his penis.

Tupic had to cut his sex session short when the pencil shifted and became lodged in his bladder, forcing him to call an ambulance, the Kurir newspaper reported.

Doctor Aleksandar Milosevic from Belgrade's Zvezdara hospital, who succesfully removed the pencil, said: "At first the patient did not tell us what really happened, but x-rays proved the truth.
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