If you wish to give your girl the works in a session with her, you will have to last longer in bed. You will need to allow her to orgasm to her heart's content before you can think of ejaculating yourself.
Concentrate on her. Think of only things that you should say and do to her arouse her emotionally rather than approach the physical aspect first. Girls are more mental so pay attention to that side of arousing her.
Romance her. Pay special attention to romancing her. Talk some butly sweet things that will make her succumb to having sex with you. Flirt and talk all the things she would love to hear.
Cares her. Let your fingers and hands do the romancing now. Touch her in all the parts of her body that are already exposed. Let your fingers run down her arms from shoulder to fingers. Kiss her on the palms and the arms as well.
Stimulate her. The fingers and tongue are very good at this. You can easily stimulate every part of her body using both these. The penal would be the last thing to use to stimulate her in her sensitive areas.
Titillate the clitoris. Again use fingers and tongue when titillating the clitoris or the vaginal lips. The penis may be sparingly used to rub her in certain parts.
Avoid the penis. Even though you may be tempted to use the penis to stimulate her clitoris and vaginal lips, refrain from doing so. Divert your attention from what you are doing and use only fingers and tongue.
Avoid ejaculation. If your temptation is too strong and you fear ejaculation then press the head of the penis to hold yourself back. You could also press at and squeeze the testicles to hold back the semen.
This is the only way you can last longer in bed. Let your girl first orgasm before you attempt to use the penis again.