Future NBA lottery pick Obi Toppin and his brother are taking each other to new heights during the COVID-19 pandemic … by literally JUMPING over each other in an insane dunk session!!!

Of course, Obi was one of the best players in college basketball with the Dayton Flyers last season … and younger bro, Jacob, will star at Kentucky after playing one season at Rhode Island.

The brothers proved they BOTH got incredible hops in a vid posted to IG on Friday … doing one-handed windmill dunks while soaring over each other.

To put things into perspective — Obi is 6’9″ … and Jacob is 6’8″. So yeah, impressive as hell.

It’s nice to see Jacob helping keep Obi — this season’s Wooden Award winner — prepared for the Association … with the NBA Draft set to go down in October.

Some experts have Obi projected to be the #1 overall pick in the draft … and he looks ready to ball.