Murphy Bed

The first stanza introduces to a situation in which one partner in the relationship is gone for extended periods of time, while the other is at home and "distracting herself" (by singing this song).

The chorus invokes a kinky sex scene, but is softened by the phrase "Or let's just fall asleep instead," which implies that while sex would be great, really the singer is just missing the partner on the road, and would be just as satisfied to fall asleep next to her. Possibly (and this ties into the verse after the first iteration of the chorus) the singer is showing some hesitation for fear of coming off too strongly; she doesn't want to intimidate the partner, and isn't sure how much to say or suggest for fear of offending.

"This one's for you / That one's for the other / We all have to learn to share with one another / Do you really want to know? / Or should I shut my face about it when you get home?"

This verse tells us more about the relationship... namely, that it's not monogamous. We hear the singer's uncertainty about whether she should talk to the partner about her relationships with other people. There's a sort of quiet desperation to it.

Really, there's a sort of quiet desperation to the entire song, which can be summed up as: "I miss you; come home!"