
Hi OP, everyone has a different clock and their map of their senses also differ. That means the time to get to pleasure and where they are sensitive will not be the same. These differences is why foreplay is important because what it does is map out these differences to synch like a dance.
Both sides need to map out the senses and emotions. The shortcut people take is rough sex because it’s creating ordeal which from that ordeal the partners focus because they are on edge. That edge heightens the senses to where they don’t need to map it and women speed up their lock to match a guy. The issue is such stuff isn’t safe overtime as people rely on it.