Theladyissittingonachair.

        Thelegsarespreadoutandbent.

        Themaleprotagoniststandsbetweenthefemaleprotagonist''slegs.

        Analysis:

        Averyclassicmother-daughtertake-allbridge.

        AVAcademy:

        Suitablefordifferentpositionsofvariouslengths:

        1.GGlengthisabout2.54cm:suitableformouthorfingers.

        2.ThelengthofGGisabout5.08cm:itisjustaboutthesamedistancefromtheGpointofagirl

        3.GGlengthisabout7.62cm:4%ofboysintheworldarethislength.Itissuitableforgirlstobeintheupperorbackposition.

        4.ThelengthofGGisabout10.16cm:10%oftheboysintheworldarethislength.Itissuitableforthebackposition.

        5.GGlengthisabout12.7cm:about90%ofboysintheworldarethislength.Anybodypositioncanachieveaperfectorgasm.

        6.ThelengthofGGisabout15.24cm:thisisthefavoritelengthofgirls.Itismostsuitablefortwopeopletostandandhavesex.

        7.GGlengthisabout17.78cm:Thislengthcaneasilymakegirlsfeeluncomfortable.Itisrecommendednottobetoodeep.

        8.GGlengthisabout20.32cm:only4%ofboysover20intheworld.Themostsuitablemissionaryposition.

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