Kevin Federline Victoria Prince Sean Preston Jayden little league baseball field sports ball uniform pregnant

Britney Spears Jason Trawick Kevin Federline Victoria Prince Sean Preston Jayden little league baseball field sports ball uniform

Kevin Federline is getting ready to expand his family, yet again!

The fuller-figured ex-dancer and his very pregnant girlfriend Victoria Prince took Sean Preston and Jayden James to a little league baseball game in Woodland Hills.

The adorable little Spears boys look like they had a blast on the field, and really get along well with their dad's new baby momma -- always a plus!

Aside from Prince's belly, we can't help but notice what a little slugger Jayden James is. Mamma Britney must be so proud!