Two bros~ chilling in the hot tub~ Five feet apart cause they’re not… gay?
Nah,
direct skin-contact because they are not gay (FTFY).
The ones keeping long distances apart are clearly the ones excited by the bodies, proof of this being true in
reality: maniacal girl tried to keep distance and fainted on direct skin contact, because he likes girls. (because manga is 1:1 to reality?)
Jokes aside, when you are out drinking in the sauna with the boys and you all take a nude dip in the pool to chill down, anyone troubled [by the skin-contact] when you go "kyaa~ kyaa~" and wrestle or play tag or have splashing wars are clearly the ones not sure in their sexuality~
(though that's a joke too~ Odds are they were simply prudish. There are prude people no matter gender, and that's ok.)
What, you thought only girls went "kyaa~, kyaa~"? No, men goes "kyaa~, kyaa~" too, obviously. Though being drunk helps.