OK, have another Nanoha idea, this one a bit more intimate, and also vague as to the timeframe. Can even be an AU, if you want. :)

The idea is that Nanoha and Fate are celebrating the anniversary of when they first met (or their wedding anniversary, if they're old enough), and as an anniversary gift, one of their friends gives them a pair of nooses, letting them hang to death together. Odds are they will have sex while they hang. :)

Again, timeframe is vague, so those into loli can go for first season/A's Nanoha and Fate, while those not into loli can go for StrikerS or beyond. I look forward to seeing if anyone is up for trying it. :)