I don’t know why I never thought about this before. Aces of wand and swords are masculine, right? One is physical sexual arousal and the other is mental sexual arousal.
Aces of cups and pentacles, as the feminine suit, follow the same. Cups are mental/emotional arousal (yes, think cups & water, wet…and the stimulated “feminine” mind enacting arousal) and pentacles the physical.
If we think about the aces as the root or seed of each suit, consider the wands and pentacles as creating pregnancy.