I have two bumps on my leg. One is right on the inside of the thigh and the other is below my rear. They have been there for a long while. Does anyone know what these are or if I should get them looked at?

I would have to know a little more to be able to completely help you, but you may have "pressure ulcers," This is caused by sitting in the same position for long periods, especially if you are overweight.
If the bumps are bigger than a quarter, look like bruises, and are tender to the touch, then that is what I would guess. I would go to your doctor, and let him look at it. S/he will likely prescribe a heavy duty antibiotic cream.
They have a tendency to rupture, and the cream is to keep infection out of the wounds. You might want to bandage the areas with a large (4") adhesive band aid just in case it does. If the doctor does not give you any answer, go see a dermatologist.
Now, to prevent further occurrences, when you shower, wash the area thoroughly, again to keep bacteria at bay, and dry it very well. If you are overweight, then when you go to bed, you might want to powder the area, to keep it dry.
If you have to sit in the same spot for more than an hour, then get one of those wind up kitchen timers. Set it for 25 to 30 minutes. When it goes off, get up and walk around for 5 minutes. If you have to go to the restroom, go, but still stay standing and walking for the five. This also avoids an even more dangerous problem, DVT. DVT is Deep vein Thrombosis. I used to work at a job, where out of ten hours, I got one hour away from my computer. And with that hour, (2 15' and a 30 lunch,) I'd be busy going to the restroom, or sitting...
I had two pulmonary emuli, (blood clots in the lung,) that almost killed me. And if I get any picture taken of my lungs, I have to warn the radiologist about that, because one of them damaged my lung so much, it looks like I have one now..
Sorry for this being so long, but maybe this helped. Again, and I stress this, if you think it might be that, go see a doctor.