From bottom to front, you curve those briefs in all the right places
Might be several things. I left my tri-focals in the other room. You took a wee photo and over-enlarged (lord, who hasn't has those dates). You never bothered to look at the manual that came with the camera yer Mum gave you for your birthday last week. Irregardless. Really bad shot. You seem to be a cutie. You deserve better!
Repost a clearer pic without the underwear.
Beautiful, ripped body!