No, I doubt anyone finds those attractive. However by the time you reach the age to get them, I would hope the men you associate with have reached the maturity to not care about them. Females peak at around 15. As a rule their bodies only deteriorate from there. I'm pretty sure men of your age realize that you are no longer going to look like you did at 15 and they have no choice but to accept the changes as the 15 year olds will quickly land them in jail with a bunch of guys who think they have pretty butts. It is a real deterrent. Your flabby arms are really not that big a problem. In fact any guy that is turned off of you because of that is not someone you want anyway.
Just accept it. If you can accept your whole body and be confident about it, a guy will hardly notice or even care about after all. After a certain age, it IS hard to keep the flab on the arms no matter how much exercising one does. Some people opt for minor cosmetic surgery, but I say, just accept it. At your age, hopefully you will find a guy who has a maturity level to not care about minor details.
Have you tried doing some exercises to tone your arms up a bit? A good one is to get a tin of beans or bottle of drink in each hand, lay your arms flat by your sides, exhale and as you inhale raise your arms out from your sides, so that your body makes a T shape. Hold for 10 seconds, breathing normally then exhale as you lower your arms. Repeat 10-15 times. If you are doing it correctly you should feel a stretch in your lower arm.