From Creatures Wikia
From the site's summary:
- It smells like fruit. It tastes like fruit. So why does it make Norns act so funny? This adds a Creatures2 vine with fruit to the Norn terrarium.
Kiss berries are fruits which, as the name suggests, make norns kiss.
The agent requires Creatures 3 to function.
It is available for download at AmberCreatures.