who's the married one?

At class, the teacher explains that there are three birds on a wire. A hunter shoots, once. She asks how many birds are left on the wire.
"None", says Johnny, "because he missed the shot and all of the birds got scared and flew away."
She says that was not the answer she was expecting, but she likes his answer. Then Johnny asks:
"There are three ladies on a bench at the park, enjoying popsicles. The first one is licking, the second one is sucking, and the third one is biting the popsicle... Which one is married?"
The teacher blushes, hesitates, and says "the one who's biting her popsicle?"
Johnny replies "It's the one wearing a ring, but I like your answer."