In my opinion a lot of it is genetics.
i think its psychological, and maybe you should concentrate on embracing what you have. You dont look manly. Not even close. You look very beautiful, and please dont let something some mean guy said to you, affect how you view your body.
Do yoga to lengthen the muscles but do continue to bike, or run or whatever to build muscle. You can't fight your body's natural disposition so you might just have to embrace your body the way it is and make it the best it can be.
Focus on upper body cardio, hand pedaling, light kettle bell work....and essentially use leg muscles as little as possible....doing this while losing weight should decrease them in size somewhat, but will probably be very difficult...
the best thing you can do is keep them fat free ( something I am working on). The fat gets in the muscle and makes them bigger. Walking, running, yoga, pilates are all good things. But mostly try to reduce your body fat overall, you will be amazed how great they look.
Be patient... it takes at least 3 months to really see changes.