Is there anyway to like make myself not look so bony?

Seriously, I hate it. I hate looking at people who's like collard bones stick out and stuff, and I feel bad for people because all my bones stick out and it's gross. Like, in my spandex volley ball shorts that are supoosed to be really tight, are saggy on my . Ugh. Other than gaining weight is there anyway to not let my gross bones stick out? Thanks also for an idea I'm 5'9 and 98. Thanks!