Ratso, Quick question: how much are you focused on this issue with your girl, and how visibly are you demonstrating your desire to get her to orgasm? I've found that your young lady-friend can frequently sense if you're stressing about something in the bedroom, and get something of the performance anxiety that is usually associated with us males being on the short end of length or time. You say she's still tense, or that you sense some tension. I would suggest you consider backing off of the explicit physical sexual action, and play around a little bit with things that have nothing to do with getting in her pants.
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You don't love me, you just love my piggy style
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