Exactly how steamy is this story?
PG-13
Nothing truly dirty happens in the story. The raunchiest it gets is when the young girl suggests that she and the young boy could have sex on the bed on the lawn in front of all he neighbors. But even that little suggestion is very subtle; she just offers innuendo.
The older guy seems to get kind of creepily interested in whether the young couple wants the bed, makes them dance for him, and then takes over dancing with the young girl when the younger dude is too drunk—but this is all just kind of creepily done, more suggestively sexual than outright bawdy. Between these "sexual situations" and some cussing, we'd say the story is solid PG-13 material.