London: Rupert Grint says kissing his `Harry Potter` co-star Emma Watson was "unnatural" because she`s like a sister to him.
"It seemed like the most unnatural thing to do, to kiss this person I`d known since she was nine. It took a while to get into it and put our friendship aside. It`s quite full-on, a proper snog. We`re soaking wet as well - they dumped gallons of water on us and then we just went for it. We laughed a lot and it took us a while to concentrate. We did it about four times," a website quoted him as saying.
The 22-year-old says it wasn`t an ideal situation for either of them.
"It`s a nice moment for the characters but she`s like a sister to me. We`re all really close friends, so it was very strange doing that."