Yoshi and Birdo are often partners in many of the spin-off games, especially in the sports games. In Mario Party 7, Yoshi and Birdo appear to be partners. In Mario Party 8, they also reappear as partners in this game. They were seen nuzzling each other on the title screen of Mario Tennis. Of course, their relationship has been quite unclear. In Mario Kart: Double Dash!! the two are partners and share a similar Special Item. On the official Japanese site for Mario Kart: Double Dash!! the description for Catherine states "Catherine appears to be Yoshi's girlfriend... or does that mean boyfriend!?".