It does go pretty far. But yes, its normal to masturbate - from a little to a lot. And, like swimsuits the ride up and rub, any wedgie has a tendency to rub the same places and make you feel good. Ask any swimteam member about how spandex feels.
Seeing the beginnings of the second line can mean you are pregnant but its a bit too soon to test. Havnig the second line after a few hours could indicate pregnancy, but its usually caused by evaporation. When the urine evaporates through the test it has a tendancy to cause the pregnant line...