Foreskin fun

I’m no more than 5″ erect and have a generous foreskin.
When masturbating, the space under my foreskin holds my precum and acts as a lubrication reservoir. This means I can finger my cum hole without risk of injury.
When agitating my foreskin, I pull it back a long way. A piece of skin stops it going further. I sometimes wonder if that skin could tear.