How to fit a big ball sack into a cup

[Weather]

I am 15. I have a very large ball sack and i cant fit into a XL mens and jockstrap is really tight

[Requin]

There aren't any bigger sizes??
Could you wear some slightly tighter underwear? Like y-fronts, ummm you know what I mean right?

This wouldn't put so much pressure on your balls from the cup/jockstrap.

[Atonement]

Um, jock straps and cuts are SUPPOSED to be tight. If they aren't tight, they aren't doing their job. They shouldn't really be comfortable, but you shouldn't be in pain. So, find one that holds everything in place, but doesn't hurt you. If that makes sense.