The woman notices that the man is reading her online journal. She thinks he does this to be funny, because it makes her squirm and make meepy noises and try to get him to stop reading it while she's around while simultaneously avoiding discouraging him from reading it in general. So she does the logical thing; she gets up and walks over to him and throws the hem of her rat-chewed nightshirt over his eyes so he can't see the monitor. He blows a raspberry on her stomach. She removes the shirt (from his head, not from herself) and accidentally licks his forehead. They get up and go in the living room to watch Junkyard Wars.
And they are happy.
(How does one accidentally lick a forehead? Well, if one occasionally phthpts at one's boyfriend in imitation of the way the cat licks his face, one is destined to misjudge eventually and actually lick him.)
Things You Didn't Know (from m-w.com):
2 [short for raspberry tart, rhyming slang for fart] : a sound of contempt made by protruding the tongue between the lips and expelling air forcibly to produce a vibration