I had a new washing machine coming to the house so I was waiting around for them to arrive. Chatting with a fellow redditor on here he convinced me to tease and show off for them when they were here. I spent the morning waiting on nothing but a normal length tee shirt and a thong. My heart racing all morning. When they finally arrived it was two guys. One was younger, much younger than me. He apologized for catching me without clothes, I made a dumb joke about I didn’t have any clean pants since the washer was broken. He was taking quick glances but definitely didn’t want me to notice. The other was an older man that had no problem staring right at me. I was trying to move around them a lot, bending over the old washer and pretending to explain how I couldn’t reach the plug. The younger guy worked fast, removing the old washer and hooking up the new one. He was out the door the second he was done. The older man hung back a bit, saying something about registering and a warranty. I stood by the door and told him thank you for everything. He replied with “no, thank you” he then reached out and grabbed my ass. My chest was pounding. Face red and hot, my nipples rock hard against my shirt. I was speechless. All I could do was shift my hips and give him a better view of my ass and smile as he reached out and grabbed it again. This time his fingers sliding down between my ass cheeks and then he was out the door. Once they were gone I was immediately in my bedroom with my panties off and my vibrator driving me to an intense orgasm as I couldn’t get the thought of his hands on my body out of my mind.