Skírnir and Gerðr
Gerðr is a goddess, Jötunn, and wife of the god Freyr. Freyr sees Gerðr from a distance and becomes lovesick at the sight of her; and Skírnir, his servant, go to Jötunheimr (where Gerðr lives with her father Gymir) to gain her love. Gerðr refuses, though after being repeatedly asked by Skírnir she finally agrees. However, in return for Skirnir's assistance, Freyr gives him his sword, which results in Freyr's death at the hands of Surtr during Ragnarök.