i have three older brothers, my dad, an uncle, and my mom all living with me. one girl in a house of seven. she grew up with five brothers and no sisters. so she's just one of the guys for the most part. i mean, we jack off and have sex in private, but we'll joke about it and stuff. and as far as nudity, we'll moon each other and stuff because its funny, but we don't like lay around the house naked..
i'm straight, but i've always wondered what it would feel like because of the prostrate.. i don't think i would let a guy stick it in my butt though. wouldn't it feel like you're pooping? lol
i would just do what they do. they obviously feel like its a normal thing, so just pretend like you do too. i'm sure you'll get used to it. just keep your eyes above the waist and don't get a boner and you'll be fine!