Aly MichalkaBianca KajlichEXCLUSIVE: Rules Of Engagement‘s Bianca Kajlich and Aly Michalka (Hellcats) have joined Undateable, NBC’s multicamera comedy pilot from Bill Lawrence and Warner Bros TV. Written by Adam Sztykiel based on the book by Ellen Rakieten & Anne Coyle, Undateable is described as a bromantic comedy about Danny (Chris D’Elia) and Justin (Brent Morin) — two very different guys who are bonded by their common inability to attract women.  Kajlich, repped by UTA, The Collective and Warren Dern, plays Danny’s (D’Elia) older sister Leslie, a divorced single mom who works as a wine rep to get free booze and meet guys; a straight shooter, she tells it like it is. Michalka, repped by CAA and Principato-Young, plays Maddie, an attractive waitress in Justin’s (Morin) bar who is endlessly attracted to jerks and bad pickup lines … but could she have a sweet spot for Justin? Kajlich is the latest Rules Of Engagement star to book a pilot, joining David Spade and Patrick Warburton. As original cast members, the trio’s deals are up at the end of this season. Additionally, newer Rules cast member Adhir Kalyan also landed a pilot gig in second position. Michalka will next be seen in Grown Ups 2.