Milwaukee Bucks superstar Giannis Antetokounmpo and his brother, Dallas Mavericks rookie Kostas Antetokounmpo were enjoying some good old family time together.

The elder Antetokounmpo posted a video on his Instagram of him working out with his younger brother in the offseason, while also injecting in some little dancing and fun.

It's great to see the two Antetokounmbros bonding and having a great time with each other while putting in some work.

It's crazy that their bodies look pretty identical at this point. The Greek Freak is a physical specimen we've never seen before – a 6'11, 240-pound beast that can dribble like a guard and dominate in the paint.

While Giannis had 42 pounds over his younger brother – listed as 6-foot-10, 200 pounds – at the start of the season, Kostas seems to be catching up in that department, as well.

Giannis Antetokounmpo, 24, is obviously the better player between the two right now. His dominant 2018-19 campaign has cemented himself as one of the best players in the league, and his meteoric rise to superstardom this season could garner him the league's Most Valuable Player plum. What's scary is that he can still get a lot better and deadlier by developing a consistent jumper.

Kostas, on the other hand, is still finding his way into the league. He played just two games for Dallas last season and spent most of his rookie campaign in the G-League. Nevertheless, the raw 21-year old power forward certainly has the potential to become a solid NBA player down the line, and if he ever becomes 50 to 75 percent of what his brother is right now, that would be a welcome development for the Mavs' future.

It certainly helps that he has the same genes and gets plenty of tips from his MVP Finalist brother.