sunglasses Hayden Panettiere cellulite shorts flannel shirt plaid shirt purse sandals

Hayden Panettiere may be in the mood for short shorts now that the weather's heating up, but maybe she should hit the gym first?

No doubt the girl's got a hod bod and she's not afraid to show it off -- but maybe she's due for a Stretch & Tone class??? Sorry!

See the problem area after the jump ...