Is it normal to masturbate like this
So I watch a lot of porn and pretty much once a day I'll watch like 2 to 5 videos and jerk off.
But my ex once told me that if you watch too much porn you'll lose your ability to have sex without it.
Now every now and then I'll test this by jerking off using only my thoughts. I've noticed that I last longer, I have much faster rhythm, but I'm not as hard.
Is this normal? Am I perhaps starting to lose my ability, explaining why I'm not as hard and it takes longer to cum?