I'm a big guy, so I have big thighs and when I put my legs together, my right testicle goes above my left. Is that normal?

That is normal if... The moving right testis at leg-crossing is a normal phenomenon but reflecting the size and length of the sac and the space between thighs to yield. So, what you see and describe is normal for some like you. More? Seek evaluation & counseling, or peruse article in http://formefirst.com/eNewsletter06.html and its related articles in the category. Best wish to health,