Jenna Newman's new play with music is a brief gay-marriage allegory: when a couple of male penguins announce their intention to wed, their fellow zoo animals raise a ruckus. More Bambi than Animal Farm, this production from Theatre 5.2.1 doesn't aim for cultural relevance or even comedy so much as it aims for the cutesy--which it has in spades. With their clever costumes and Sesame Street-style acting, the performers are generally likable. But unless you're one of those adults who still watches Nickelodeon, you're apt to find the whole thing just a bit too adorable. Through 11/12: Fri-Sat 11 PM. Theatre Building Chicago, 1225 W. Belmont, 773-327-5252. $5.