I am a male player mostly but only because female centered games can get predictable after playing them a while. Only so many blackmail plots you can take before it gets stale.
They may feel the same to someone who doesn't enjoy them but a big part of NTR is the feelings of loss it causes. Loss of Masculinity, loss of love, loss of trust etc. If you're sharing you are in control of what is going on thus it's completely different.