What motorcycle to choose?

I've just turned 50, am 5'1" and 120 pounds. (I hate that weight, but hormone therapy is tough...) Anyway, I've ridden with my husband as a casual, fair weather rider for nearly 30 years. I'm wondering if I'd enjoy cycling better if I were driving myself. Here's my fear: I'm a teacher toting pencils and book bags - my upper body strength isn't great, and I'm scared of the weightiness of bikes. I have to be able to touch the ground firmly. Scooters tend to appeal to me more and I just noticed that there are some that can go long-distance at highway speed. What can you recommend? He's got a Honda Valkyrie and an ST1300.