I find out hard to be loud in bed help?

I don't think your problem there is about not being loud. I am shocked he is asking for that when he knows his parents and brother are in ear shot. I would be totally embarrassed if I was at a g/f's house having sex in her room and she was screaming her head off, then had to face the family moments later. You sound like you are being considerate of everyone in the house. It would be totally different if you said the house was empty, then we might talk about your problem. Do you act the same way if no one is in the house? Most common it is the guy who is quiet. I use to be quite quiet during sex while my girlfriend was moaning away. I just had to let go of the thoughts that were making me think I would sound weird or funny doing the moment. The honest truth is any sound during that time is good, it means you are letting go and having fun with it. So what if it sounds funny, it gives the both of you something to laugh about later. I know me and my ex laughed a lot about our actions, like what were we think, but it is all in good fun. I guess my main point is if it feels good to you, express it, and let it out!

I like that you are being considerate of others. It shows that you have a lot of character. Its your choice. Not your beu