Just wondering

[HalfManHalfAmazing]

First off, I'm 100% straight.

With that being said, this isn't a major problem, and I'm sure it has happened to other people...I think.

Anyway, when swimming in phys ed or just anywhere with people my age that I know, there are times when I get erections. I'm pretty sure this is either because a) I'm not used to having people my age nude around me, b) I'm not used to being nude around people my age, or c) both.

Not the point. I was just wondering if there was a way that I could prevent this from happening?

[Oblivion]

Not really.
A lot of guys get erections when sexually aroused, or even random ones.
Just try to move along, and get it over with ASAP.
Or you could try thinking about something else the whole time.

[HalfManHalfAmazing]

...like?

[Oblivion]

Anything.
Thinks about your next class, or a math problem you have trouble on, or some social thing you have going.
Its actually pretty easy to keep your mind on something if you concentrate.

[ChaoticHarmony]

its happened a couple of times. its usually random. i just stay underwater and swim around under the surface so i think about ma lack of breath instead