So for my whole adult life I’ve been in the HVAC field, working on furnaces and air conditioners. Naturally, when problems occur with family member’s equipment, they call me to help. This particular case happened a few months ago when my SIL turned on their heat for the first time this winter. She called me up and asked if I had time to check it out. I agreed to come help, packed up some tools in my personal truck and went to leave. Now usually my wife will come with me, but this day she was busy doing something so I went alone.

When I got to her house, I realized that she was the only one home. Apparently her husband had to work late that day and her kids were elsewhere. She had on a tight work out set, sports bra, tight jacket and yoga pants. Blonde hair tied up in a pony tail, she was looking very sexy. She led me down to the basement and bent over in front of me to pick up some clothes that were on the floor. I had a pretty good bulge going on from my thoughts and seeing her in those tight clothes. So when she turned around, still bent over picking up clothes, to apologize for the mess, my crotch was the prefect height for her to see. I caught her looking and she stood up and started to blush, I chuckled a bit and then got to working on the furnace. It was an easy fix, just needed a good cleaning to get it running again.

Before I could head upstairs to let her know it was working again, she had came back down to check on me. She had unzipped her jacket quite a bit to show off her nice cleavage. After I told her that her heat was working again, she started thanking me and asking if there was she could do to pay me as she closed the gap that was between us. She put her hand on my chest and gave me a look like she wanted me to bend her over and fuck her right there in the basement. My cock was rock hard in my pants and I was just about to make my move when I heard the garage door opening. Her husband, my BIL had gotten home and cock blocked me. I have not had the opportunity to see her alone again but she has been texting and flirting with me more than ever before.