It's wrong to get involved sexually with friends.
Jenna's attractive male friend just went through an especially difficult breakup.
Jenna wants to have sex with someone she finds attractive.
Jenna encourages her friend to move on to someone new by going on a double blind date.
One night when Jenna's friend comes over to cry about his breakup, Jenna propositions him.
Jenna and her friend both end up hitting it off with the new people they meet.
Jenna's friend feels like she took advantage of his emotional distress and becomes more distant.