When the Buddha was alive, there were strict rules on the portrait, sculpture and shape of the Buddha. There was a Buddhist scripture (The Measurement of Buddha Statue) that specifically introduced how to make Buddha statues for later generations to cast Buddha statues. The Buddha statue you see is not as good as Buddhism, and it is derived by people who don't understand Buddhism on their own imagination, not from sexual morality, so it is normal to feel uncomfortable or afraid!
amitabha