Considering buying a we-vibe for us to use during sex, but I'm just an average sized guy and in spite of this and even in spite of 2 babies, my wife's vagina is tight. This is usually a good thing. I'm concerned that adding a we-vibe inside her might take up too much space. Anyone that can say whether this will be the case or not before I spend $100? I only trust the salespeople to tell me the answer that results in me spending money, after all - where I will be buying, I can't return it so if it doesn't work, they have my money and I can't get it back.