What do you think about bed picnic for your lover? I think it will be great and romantic! For this picnic you will need one blanket on the bed, beautiful candles, and romantic music. Also you can use chocolate, fruits, bottle with wine and your hearts full of love. You can just talk to each other about everything. It will bring both of you the great pleasure.
Another way to have a picnic in your bedroom... Just draw or stick little stars on the ceiling in your bedroom. And have a wonderful night under the stars in your bed!