|The Berenstain Bears No Girls Allowed|
|Author/s||Stan and Jan Berenstain|
|Publication date||March 12, 1986|
The Berenstain Bears No Girls Allowed is a book published in 1986.
Sister has been participating in the games the boys play. At one time she did poorly, but as of late she is not only good, she is so skilled she even beat the boys. Rather than being a sore loser, Sister has been a "sore winner", letting the boys now how they cannot compare. Sister's constant gloating about her skills being better annoys Brother and his friends, and they go off on their own. Sister realizes maybe she has been a spoilsport and the boys should enjoy some time without her. However, after a few days, she wonders where everyone went. She looks at the usual hangouts, but sees no one, then goes to the baseball diamond to find it deserted as well. However, in a thicket behind the backstop of the baseball field she hears voices, then goes in and sees the boys working on a clubhouse that looks like a fortress. Sister is impressed, but when Cousin Freddy gives a signal that a "female intruder" is in their midst, the boys, to include Brother, retreat and put up a sign that says "Bear Country Clubhouse, No Girls Allowed".