Quirky, free-spirited Valerie Marquez likes to make sure her kindergarten class has fun while learning. Uptight, by-the-book Andrew Wexler is allergic to fun, and loud music gives him a migraine, which makes sharing a wall with the other kindergarten teacher who loves to blast music all day his worst nightmare. But during the end-of the school year party, their shared tension morphs into a night of wild sex. What neither expected was the surprise consequence of that night. A baby. And, if sharing a wall with her nemesis was hard, sharing a classroom with him, while she?s feeling hormonal and hungry, is much harder. Turns out that co-teaching isn?t the hardest thing they?ll have to overcome. Trying not to fall in love with her baby daddy is much harder.