Forearms for obvious reasons. I just love the thick veins all over. Kinda puts me in mind of something very familiar...........
That and eyes. He's got to have sexy eyes. This one guy I work with has the almost black, dark brown eyes that are just yummy.
Body build varies, depends on the guy's personality. Fun and sexy guys can be big too. But for me I need a guy who's tall, 6' 2" and taller, but not skinny skinny. I actually prefer a little meat..........hehehehehe.....I said meat.............