At least, so this study shows.
Ok, now, wait. Before anybody goes and tries to make caffeine pills the new "date drug", you should know this applies only if you're a rat. More precisely, if you're a FEMALE rat. They don't know yet if this translates to humans, although I could give an educated guess and say, yeah, probably.
The rats with the highest return-for-more-sex rate had the caffeine equivalent of a couple shots of espresso for a human. But then, they'd never had caffeine before. It might take a bit more for those of us with high caffeine tolerance.
Suddenly I feel the urge for a latte.