Because the touch was not prolonged, though Byelstir was much larger than his sister, Thor healed right away. "I offered my hand, he was right to take it so no offense was given. My skin is make of stronger stuff," he laughed, though he spoke true indeed for only the scars Loki left were there... And faded.

A few days more and they would disappear too. Thor' ability to heal and to reject the point of a spear would make him nigh invulnerable. A good trait to have as All-Father, surely!

"As my future brother, I would extend to you the opportunity to visit your sister upon Asgard whenever your duties allow. We are to be a family and so I would like to know you as well as you care to know about myself. I fear that your father will be annoyed if I do not announce myself, however."

Thor didn't actually care but he was trying to impress Loki.