Mom Gets WET Part 1

First, some quick background. My name is Tom and I am 16 years old. My mother, Tiffany, is an extremely attractive 41 year old brunette with C cup tits and an AMAZING body(she is a personal trainer). My father left when I was six months old, and my mom Tiffany never talks about him, only saying he was an alcoholic deadbeat. Because of this, me and my mother have grown extraordinarily close over the years. Since I am an only child, we went on vacations together and I got jobs over the past few summers to help with the bills(money is always tight because my mom wanted us to live in an expensive neighborhood so I could go to a great public school).
Throughout the years Tiffany has had no shortage of guys trying to date her(most of the guys she meets are through her job at the fitness center) but she’s generally gone on a date or two with them and ended things without going into specifics with me. Although it was never discussed, I think she lost interest in many of them when she realized they just wanted to sleep with her.
Despite this, she started going on dates with an ugly, slightly overweight, but extremely wealthy businessman named Michael about two months ago. It was set up as a blind date and I was shocked that she seemed to like him(since she is so gorgeous and he is, uhh NOT). However, one day shortly after they had their third date I came home from school to see my mom in the kitchen making a sandwhich, having just returned from work.
I admit I had trouble NOT looking at my mom in a sexual way, especially after she came home from work, dripping wet from working out with a sports bra/top and tight black workout pants that accentuated her large but extremely firm ass flawlessly. As she bent down at the kitchen counter to grab the bread, her black g-string underwear hiked up ever so slightly above her pants line.
“Does every dude at work see your underwear whenever you bend down to show them an exercise?” I asked jokingly, biting into an apple.
My mom let out a genuine laugh. She wasn’t embarrassed, we had seen each other in more private positions than this many times.
“Hey stud, I gotta talk to you” she said as she began to peel an orange.
“sure mom whats up?” I asked.
“So that guy Michael….I uhh, I like him Tom. So he’s going to come to dinner this Thursday OK?” she asked nervously.
I admit I was a bit shocked but of course, I was happy for her.
“Well mom, if you like him he must really be a special guy, I’m happy for you.”
“Oh sweetie, you don’t know how happy it makes me to hear you say that” she said as she tried to give me a hug but I dodged and said:
“Hey easy sweaty woman!”
That just made her laugh as she started to chase me around, trying to give me a sweaty hug.
Thursday finally rolled around and Michael arrived with not just a dozen red roses, but a small jewelery box.
“oh god Michael you did not have to do this, seriously!” my mom gushed at the dinner table when he presented it to her.
“Well are you gonna sit there or open it,” he said.