(Not really a pick up line but....)
A guy gives a girl 12 roses. 11 real, 1 fake.
He says to the girl, "I will stop loving you when the last one dies."

Pick up Line 3
(Not really a pick up line but....)
A guy gives a girl 12 roses. 11 real, 1 fake.
He says to the girl, "I will stop loving you when the last one dies."