He keeps bringing up the fact that cum stains keep coming up on our blue towels. Pisses me off because I think he thinks I'm doing it, when I told him a zillion times I'm not doing it. But he keeps telling me he forgets to ask my brother if he is the one doing it. I think my Dad may have lied to me and my brother may have lied to him. I think my Dad asked my brother and my brother points the finger at me. I know I'm not the one rubbing cum on the towels, for one I don't even clean up after I cum because that is how lazy/disgusting I am. But I find it gross that our Shower Towels are being used by someone in my house, most likely my brother as Cum-rags.