My short story.. please critique it and help me out (my first one)

The Millionaire Secretary

Laying there, covered in sweat…breathing heavily…. I can’t believe that we were together, even if it was only one night..
Ugh, working at this office has been a drag! Computer typing, paperwork, coffee day in and day out. I’m Milla by the way. I’m just your average secretary for this big wig company. I consider myself an average 28 year old plus size woman. I’m about five foot seven;230 pounds.. give or take. I’m not your average kind of lady. I have my hair half shaved and have a different color every month. My wardrobe is a little more eccentric than my working counterparts. I like wearing loud colors,tight skirts, you name it! You give me patterns and I’ll give you fashion! I got this job because my girlfriend knows the owner of the company. Yeah, I have a girlfriend but we have an unconventional relationship. We’re bisexual and don’t mind sharing partners.We met at a party over two years ago and the sparks flew. I was her first black girlfriend but color doesn’t really matter. She loves me for who I am.
Back to my day at work..