When my muscles start to burn from exertion, it is the best feeling in the world. I like to feel my biceps tense as I do my biceps curls, and watch them get bigger and harder with each rep. I look so seductive as my muscles tense in front of your eyes, and I just keep pumping them more and more. Veins appear on my forearms as the circulation in my muscular arms increases. I moan from the effort but even more from the pleasure that contracting my biceps gives me. My strong arms look so beautiful with those rounded shoulders, bulging biceps, and carved triceps.