This thread is inspired by my post
https://forum.oneclickchicks.com/show...3&postcount=15 in a different thread. I was initially a bit hesitant in sharing the stories, but I thought it was all in the past and we parted ways in a peaceful way so this might be a good place to remember the good times.
For those who didn't read the other post, the basic introduction is something like this. My (ex) girlfriend and I had been together for quite a while when the sister showed up in our lives. Laura is the girlfriend and we had lived together for about a year or so by that time, Chloe is the younger sister who came to Australia to get her master's degree. My relationship with Chloe started very awkwardly and properly with us being polite to one another every time we saw each other. Until the crotch-grab event happened in the other post changed everything.
So moving on to the story which happened a few months after the crotch-grab. Sorry if it might be a bit long.
After the previous incident, I then knew that Chloe was cool with the idea that I was having sex with her sister, and that she wasn't particularly prude by any means. But at the same time, I still had no idea how far she would go and I was afraid that I would ruin everything if I pushed too hard. I decided to play it safe for the long game by not bringing up the crotch-grab to her and acted like nothing ever happened. We continued to be somewhat awkward/polite to each other but it was also clear that we were becoming more relaxed toward one another.
In Australia, the summer time can be really really hot, and Laura is big on the idea of not using the AC unless it's really necessary because electricity bill is a pain in the ass expensive. So often times, she would walk around at home just in panties and singlets. I often walked around just in my undies too during those times. But that was all before Chloe was there. School year began mid-year which is winter time, so when summer finally arrived at the end of the year (coincidentally with the summer break), I was pretty excited to find out whether Laura would keep her habit of walking around in the house just wearing panties in front of her sister, and whether Chloe also had the same habit or not.
The first few hot days were disappointing as both Laura and Chloe kept on deciding to go out (mall, movies, etc) to cool down and avoid the heat, but I kept my patience knowing that eventually there would be a hot day where they would be at home. One day they finally got bored enough of going out and decided to stay at home. We were sweating out a lot but Laura still insisted that we should not use the AC and she had the bright idea that she would go out to buy ice cream for everyone instead. I didn't want to argue with her so I told her okay. She left, and I was a little excited that I was left alone just with Chloe on a hot day.
Chloe complained about the heat and asked me how we survived without using the AC in the past. I was being honest and said that well we usually would just walk around in our undies. She asked whether that actually really helped or not, and I randomly explained that the less clothes we wear, the more wind we feel (no idea whether that really helps against heat or not lol but it sounded like it made sense) so it helped cooling us down. To my surprise, Chloe agreed and thought it was a great idea. She just stood up and started taking off her shirt and shorts in front of me as if it was nothing. I still remember that she was wearing a matching blue bra and panties. She then started to fan herself and said that the wind cooled her down more than when she was wearing clothes. I thought to myself JACKPOT! but I tried my best to hide my excitement by just nodding and said told you so to her as if I knew everything all along.
Then a problem came up to my mind. How would I explain to Laura when she came back and found Chloe only in her underwear? She came back with the ice cream before I could come up with any excuses. But as always, these sisters kept on surprising me with their indifference to the situation. Laura just said she's back with the ice cream and asked which ones we wanted. She clearly saw Chloe only in her underwear and she didn't seem to care one bit. She brought us our ice cream, and then took off her shirt and shorts too. So there I was still clothed with the sisters in underwear, I didn't know what to do. I tried really hard to hide my start-growing boner, but I saw that Chloe peeked at my crotch a couple of times.
I finished my ice cream and decided to use this chance to stand up and go to the kitchen to consider what I would do next. I thought that if they were acting like everything was normal, I should play along to be safe. I went to the bedroom and took off my clothes leaving only my brief-boxer. When I came back to the living room, I saw Chloe had a little grin when she saw I was also in my undies. We watched TV a bit and the heat was getting even more unbearable than before (the woe of being in a upper-ish level apartment) and I said that I'd get the fan from the bedroom out as well so we'd have two fans going at the same time. While I was in the bedroom, Laura yelled at me asking if I'd bring out my singlet for her. I thought another jackpot because I knew Laura's habit of wearing loose men's singlet during hot day meant that she'd take off her bra, and I am such a sucker for sideboobs.
I came back to the living room with one hand holding the fan, and the other holding the singlet. As I set the fan down, I gave the singlet to Laura and she asked why only one. I asked how many she wanted me to get, and she said d'oh of course two, one for her, and one for Chloe. At this point, I just thought I was such an idiot and Laura was the best girlfriend ever! I quickly got back to the bedroom and hoped that I still had at least another clean singlet. The lady luck smiled and I found one. I gave the singlet to Chloe. Laura would put on her singlet, then took off her bra from the inside like she normally would. She playfully tossed the bra to me and I laughed. But Chloe decided to take off her bra first, tossed it to me as well, and then put on her singlet. Her breasts were only on show for a couple of seconds, but they were glorious couple of seconds. Her nipples were the same light brown color as Laura's, her boobs were a bit smaller but looked perkier. I had an instant boner that I couldn't hide anymore.
Chloe just openly pointed at my crotch and said she knew that would make my dick excited. Laura laughed at this and came over to me, slid her hand inside my undies and gave my dick a short stroke while saying be patient and wait for night time. Believe me, that was the longest day-to-night wait ever!