To macerate the fruits, put the chopped fruits into a bowl, and add the sugar and lemon juice. Mix it gently until evenly mixed. Let this sit for five minutes.
Cut the sponge cake into pieces, and put an even layer of the sponge at the bottom of the jar/dish.
Now add some whipped cream and spread it evenly on top of the sponge layer.
Top the cream with a layer of macerated fruits.
Now repeat this same process, one layer of the sponge, macerated fruits, and top it up with some cream.
Let it cool in the refrigerator for a couple of hours before serving.