Those gifts are exchanged for kisses after the main character resists adulterous advances.  
In this story, one title character is given a deer one day, a boar the next, and a fox the next, in addition to a girdle that is supposed to protect him from physical harm.  Those gifts are exchanged for kisses after the main character resists adulterous advances.  It opens at a New Year's festival where the second title figure offers the chance to strike him if the favor can be returned a year later.  It turns out the stranger is Lord Bertilak, and the ploy had been engineered by Morgan Le Fay to test the youngest of the round table knights.  For 10 points, name this medieval tale written by the Pearl Poet.
In this story, one title character is given a deer one day, a boar the next, and a fox the next, in addition to a girdle that is supposed to protect him from physical harm.  
Sir {Gawain} and the {Green Knight}