Hilary Duff & Her Sister Are Pilate Pals!

Now that's sisterly support!

Expectant mama Hilary Duff and her sister Haylie Duff were spotted taking in a pilates class on Thursday (October 27) in Toluca Lake, Calif.

Hilary - who is expecting a baby boy with her hockey player hubby Mike Comrie - looked relaxed in her over sized shades and black flip flops.

The singer recently opened up about her feelings of "isolation" growing up as a child star and doesn't want her son to follow down the same path.

“(I missed out on) stupid things like passing notes in school and having a locker and riding the bus, I mean, really stupid things," the former Disney star reveals. "Once I started touring… my life… was very isolated, you know? I lost a lot of my friends. I was on a totally different playing field than anybody else. And I grew up a lot faster, and I think that it definitely put me in a different place. But I wouldn’t trade it."