Candles, roses and clean sheets are all fine for romantic encounters (we recommend the clean sheets, especially), but sometimes it's music that really sets the mood. And if you're not sure what to use, condom brand Durex has a new Facebook app that can help.

The company's In-Sync Song Generator is part of a new Durex Performax range of products designed "to speed her up and slow him down." To use the app, you and your partner answer a series of questions including what time of day you each like to have sex and how varied, energetic and loud you are.

For example, if one person "tends to get eager in the evening, while the other likes to get naughty at night," that couple is deemed Romantic & Racy. The song generator then does its thing to pick out something with a "titillating tempo and a sensuous sound" -- in this case, Peter Gabriel's "In Your Eyes."

So there you go, guys. Now you can really make sweet music together.

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