WHen you say 'tone up your inner thighs' , are your sure the muscles aren't already toned and it's just a wee layer of fat that is there.
If it is fat - there is not a lot you can do other than diet and if your body type is one where you carry fat on your inner thighs - again - tough I'm afraid.
You can't work one part of the body and get rid of the fat from that area (i.e. you can't spot reduce) - oh how I wish we could.
Plus, bear in mind these are smallish muscles compared to a lot of other places. Go for a run - then do some weighted squats and weighted lunges and your inner thighs will be in AGONY the next day !!
No - don't really do this because it will overload the muscles terribly if you do the squats and lunges properly and I don't want you to get injured. However these types of compound exercises do work your adductors.
Edited: 04/03/2013 at 13:12