Travis Kalanick, back left, with Drew Houston playing against Olympian Lily Zhang. Spin

If your company had been recently accused of cultivating a sexist culture, you might stay away from a party called "Babes and Balls."

Not so for Uber CEO Travis Kalanick, who played pingpong at a "Babes and Balls"-themed party on Friday night.

Kalanick, Facebook CEO Mark Zuckerberg, and Dropbox CEO Drew Houston were at the event at San Francisco pingpong bar Spin.

This was during a week in which Uber had to drop its secret, regulation-dodging Greyball tool, launch a search for a new chief operating officer, and investigate its own workplace practices. "Gee, I wonder why women feel unwelcome in tech?" engineering professor Brian Noble wrote on Twitter.

Spin is part-owned by Susan Sarandon and has run similarly themed nights before. Before last week's party was a "Babes and Balls Arabian Nights" party that featured underwear-clad belly dancers dancing on the tables.

At least soon-to-be second-time father Zuckerberg had a wild time.

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Here's Travis Kalanick looking unconcerned in a doubles game with Drew Houston.

And again, by himself.

Here's Zuckerberg playing table-tennis Olympian Lily Zhang.

It looks as if she schooled the Facebook founder.

But there were no hard feelings.

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Drew Houston was given some cake when other guests found out it also happened to be his birthday.

And finally, what Zuckerberg might have been thinking throughout.