My Girlfriends Panties

I have been 'staying' with my girlfriend for three months or so. Early in the relationship I would leave every morning after waking her up by kissing her body and caressing her; I would leave to go to my house to shower and iron my clothes. After a few weeks of this she wants me to bring clothes over and leave from her house.

She leaves for work before I do so I'm alone for an hour and a half. The first day, I put her panties on she had on the night before, a thong, and found her panties she wore at work, a sheer bikini. I got in the bed on her side, semi covered myself up and began to whack. I started to play with myself while sucking in her scent from her work panties which was really musky. It must have took me 45 seconds and I blew my load all over my chest(I hate this). I just used her panties to wipe it up, she really wouldn't know any difference if she found them in the hamper.

I told her that I whack off when she goes to work and she now wants me to cum on the sheets so she can lay in it that night when we are in bed.

I now do this every morning no matter if we have had sex twice the day before. I CAN'T HELP IT. I guess it is something about being as close to her when she is not around. I have even thought of wearing her panties to work; but, I would have a boner all day.