You can get a court order for a paternity test if she refuses. It's still retarded because that just makes sure some lawyer makes money off your fucked up relationship.
Take it out and pull it to one side and release so it flops back and fourth like a spring. Women cant resist such a powerful display of dominance.
I hear you're a decent edge rusher too.
You don't have to have a hammer to make a girl sore. She's almost definetly being honest with you.
The source is never as important as the knowledge being shared.
Practice talking about yourself.