I keep having thoughts of this boy wearing a bikini.
Do you really want to seem him put this bikini on?
Yes, he is the person I want to see in a bikini.
Boys are not expected to wear bikinis. But they have a right to wear whatever they want to wear.
I'm disappointed, he should expose more skin.
It sounds like you are really crushing on this boy in particular. If you are trying to see him expose more of his body than maybe you can invite him to the pool or the beach. Either way, it is good that you understand that both genders have the right to dress however they like.