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mans hard on An erection primarily involves the vascular system. When a man becomes sexually aroused, the brain sends signals to the nerves in the penis.. Get immediate access to all our 18+ videos and photos—subscribe now! This increase in blood flow makes your penis stand up and away from your body (erect. Sexual stimulation or excitement is the typical cause of an erection. mans hard on Watch the best porn content available on our Telegram channel. Erections occur when blood flow to the penis increases. Various factors, including some health conditions, affect their duration. Tap "open" to become part of our vibrant community by subscribing to our channel. The erect (rigid penis. As arousal continues, nerves keep carrying messages of arousal between the penis and brain. Blood keeps moving into the man's penis. The most intense adult content is waiting just for you.
