What a day for Ashton!

The Two and a Half Men star headed outside of L.A. Thursday, to enjoy a little motocross action with pals but he didn't get exactly what he expected ... The daredevil, soon-to-be-dad wiped out on a sharp corner and slid into the rocky dirt.

He actually finished the track, but then stopped to check his injury. His had a bloody hip but no other obvious marks. Ashton proceeded to slip off his motocross suit and back into his regular clothes, showing off his toned bod in the process.

Mila's one lucky lady! And it seems Ashton's got luck on his side as well -- he walked away from his wreck needing just a Band-aid!