Hmm, you weight 130 and you're 5'7"... that doesn't seem as though you would have saddle bags at all. You are taller than me and weight less than me
If you feel doughy... then you need to reduce body fat from your entire body. That will help reduce "saddlebags" as well. Saddlebags are usually referred as saggy or bulging fat around the lowerback/buttocks/hips area and not the back of the thigh.
Lunges, squats, lower back extenstions, leg curls etc will work those general areas, but it will do nothing to reduce fat there. You need to work on eating better and doing an overall strength training routine. You didn't mention what sort of stuff you are eating or post any workout info. More info may help.
Here are 5 tips to fat loss...
1) Eat 5-6 small meals throughout the day. Each meal should be 2-3 hours apart. Each meal should contain one protein and one carb. The first meal should be eaten within an hour after waking.
2) Drink lots of water
3) Rest properly. This means taking at least 24-48 hours between strength training the same muscles, and it also means getting at least 7-8 hours of sleep per night. Lastly, it means taking 1-2 days off from exercising per week.
4) Cardio. This should be done at different intensity levels and different session lengths. Consider doing a low intensity/long session, a high intensity/short session and a few medium intensity/medium length sessions.
5) Strength Training. Strength train each muscle 1-3 times per week. You should lift a proper weight and perform the proper amount of sets/reps for your strength training method.
All of the above things combined will result in fat loss.
saddle bags 
and I believe everyone is working extra hard for their bathing suits. I have been dieting and exercising every since I had my little girl in June and I am very pleased with the results. I was wondering if anyone had any advice on exercise’s that trigger the back of your thighs (saddlebags). I have struggled with fat accumulating there ever since I can remember
. I know you can not spot reduce but there has got to me an exercise that triggers that area and could help tone it. I am looking for success stories and/or opinions that anyone has and can tell me.
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