Either way is good. If she's on top you get the whole splash down effect when she cums however you get a nice jet or stream if she's on her back. It is so sweet when you hit that spot ah....I'm in heaven. ((Damnit baby get home soon I'm hungry just thinking about it.))

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Deep into that darkness peering,
long I stood there, wondering, fearing,
Doubting, dreaming dreams
no mortal ever dreamed before.