Why do my legs never get cold?

I mean they literally don't get cold, I could stand outside during the winter with shorts on and they never get cold like my upper body does, and even sometimes my upper body never gets cold either. Also every time I snuggle up next to a girl, they always point out how warm my body is, I mean it doesn't bother me I don't sweat because of it, my mom tells me it's because I radiat heat well. So my first question is, why do my legs and upper body almost never get cold. And my second question is why am I so warm to the touch. I play soccer, just in case that has anything to do with it.