Scarlett Johansson has treated her boyfriend Ryan Reynolds with a weird birthday gift - her wisdom tooth. The actress gave him the present during a bash organized by her at the exclusive Chateau Marmont hotel in Los Angeles. An insider said Scarlett decided to keep her wisdom teeth after visiting the dentist to take them out. "She'd just had her wisdom teeth removed, so she had one dipped in gold and strung on a necklace for him, " The Sun quoted an the source, as saying. But, Scarlett had other surprise for Ryan, who received a full body massage. "Scarlett was out of town for Ryan's birthday but she gave him a gift this weekend in private. There was no one else there," claimed the actress spokesperson.