Can a trio of guy best friends skinny dip together or shower together?

Rather normal for guys to do either of what you mention. In the locker rooms at school, whether from the gym or the pool we all showered together nude, just normal, around the shower pole. Skinny dipped some with friends growing up too. Where I grew up, you didn't leave on your underwear in the creek or pond because we have red clay, and it stains the underwear-- so you leave it off. Otherwise moms get pissed when they try to launder them.