Looking for a gal!

Looking for a gal! is the twentieth Trouble Center mission in Paper Mario: The Thousand-Year Door, initiated by Goom Goom. It is first available after clearing Chapter 5.

Mission
Mario must head to a storeroom in Pirate's Grotto and talk to Goom Goom with Goombella present. Goom Goom proclaims his love for Goombella and present her with Couple's Cake, only for Goombella to declare that she is going out with Mario. Assuming that Mario is Goombella's boyfriend, Goom Goom gives up the cake before leaving. Goombella then picks up the cake, which she gives to Mario as a reward for dealing with Goom Goom, and the trouble is solved.

In-game description

 * "I'm pretty happy living out here on Keelhaul Key, but there's one thing I miss! I need a girlfriend! Please come listen to my request! I'm in the storeroom deep in the cave on Keelhaul Key."