So me and my hubby normally have sex everyday and I get off, but the last three times we've had sex, I haven't been able to get off. He has two kids 9 and 13 and they've been with us for almost a week now, and I feel so uncomfortable having sex when there in the house, because I'm not exactly quiet and when I am it's hard for me to get off because I'm concentrating so hard not to be loud, what do I do to help me be more comfortable while the kids are at our house?