Bobby Brown -- Baby Shower Fun Takes Edge Off After Bobbi Kristina Ba

Bobby Brown shook off his legal battle with Whitney Houston's family, and spent some time celebrating his expanding family ... at a coed baby shower for his wife.

Bobby and Alicia Brown had about 60 people at their Woodland Hills home over the weekend for some traditional baby shower games, including that clothes pin thing -- whatever ya do, don't say "baby" at the baby shower. Seriously?

Anyway, we're told it was a welcome change of pace for Bobby following his fight to be named Bobbi Kristina's legal guardian. As we first reported ... the judge eventually named him co-guardian with Pat Houston.

At the shower ... Alicia proudly showed off her belly, which got a henna tattoo makeover during the party. As for the sex of the baby -- we're told the couple wants to be surprised.

Alicia is due some time this summer.