Combine the strawberries, blackberries, and raspberries in a large bowl and add the triple sec, simple syrup, and enough of the rosé to just cover the fruit. Stir gently and set aside to macerate at least 1 and up to 3 hours.(Refrigerate if macerating for longer than 1 hour.)

When ready to serve, add the rest of the rosé, stir, and serve ladled into chilled glasses over ice. Garnish with a splash of lemon soda and an orange slice.