That would blow my mind. My wife isn't on any birthcontrol since i get a vasectomy after our last ..........and when we 'roll play' i am always the fertile stranger...that seeds her deep while she whispers in my ear, "please please don't cum inside me" pushes me over the edge every time....and to witness that i believe is my ultimate goal, risky, dangerous, even stupid....but that thought gets me off instantly.