Why take a car when you can take the train? It won't get your back all sweaty.
In a pair of risqué ads by TMW, British transport company Virgin Trains is using couples to illustrate why trains are better than cars or planes. In each ad, a couple talks about a good experience on the train; another talks about a bad experience on either of the other transport options.
The hook is that you can't quite tell who is who, and it kinda sounds like they're all talking about sex.