Anything with Lucy is a one night stand, numb nuts

Henry is a player skilled at seducing women. But when this veterinarian meets Lucy, a girl with a quirky problem when it comes to total recall, he realizes it's possible to fall in love all over again…and again, and again. That's because the delightful Lucy has no short-term memory, so Henry must woo her day after day until he finally sweeps her off her feet.