Simple Collision XNA

lately very much interested in XNA, i wanted to write some of the issues

private void SimpleCollision()
{
Rectangle rectangle1;
Rectangle rectangle2;

 foreach (var blt in lstBullet)
 {

 rectangle1 = new Rectangle((int)blt.position.X, (int)blt.position.Y, blt.bull.Width, blt.bull.Height);

 foreach (var enm in lstEnemy)
 {
 rectangle2 = new Rectangle((int)enm.enemyPosition.X,
 (int)enm.enemyPosition.Y, enm.enemy.Width, enm.enemy.Height);

 if (rectangle1.Intersects(rectangle2))
 {
 enm.status = false;
 blt.status = false;
 }
 }
 }
}