Ride or die

Every time I see my significant other I just get overcome with all this lust and want. Yes he takes care of me, yes I am satisfied but there is one drawback... I've never been on top of him and I haven't ridden him. He gets soft when I try, and I don't think our bodies work in this position. This whole time I've been lusting over him I've just wanted to get on top of him and ride him out all the way to completion. I want to make him cum so hard and I need him to cum for me and in me. For now it's just a fantasy...