Anyone else thinking balls?
No because we don't like rule 34 on James Cameron's Avata- Oh I get it.
You probably got a boner and then lost it, that's why your balls hurt. It's just what happens when your body gets all psyched for love and you don't have love, it's called 'blue balls', hence the above pun.
Solution: Fap or have love, most likely you'll get the first choice.