Bx,
You have more then enough to rock her world.. A guy with your measurements was nailing my wife while I was stupidly playing Ultima Online (Dungeons and Dragons). I confirmed that he was better at pleasing my wife then me sexually.. Do not hold back because you are worried that you can’t please her, because you can. Wind her up by eating her pussy a good while then throw your tounge into her ass, next, fuck her brains out then prior to breaking your tarter packet throw that Trout into her primary sex organ (which is her ass)..
RWG