So me and my brother have always been really good friends and we never really hide anything from eachother. And two days ago, we were discussing what kind of kinks we had (I honestly don't remember how we landed on this subject but yeee). So I start telling him about this anal kink I've had for years. I have been using dildos, buttplugs, etc for around 4 years and I'm up to the point where I can easily fit my fist. So I told my brother I really wanted to try anal but my ex-boyfriend wasn't into it. Then my brother told me he also had an anal kink but his girlfriend didn't like anal either. We kept talking about this until my brother suddenly asked me to 'show it to him'. I obliged. I went to get some toys in my room and slowly inserted them in my ass. My brother took the dildo out of my ass and inserted his cock. It felt so much better than the dildo. He started out slowly until I told him to go rougher because I told him 'I could take it'. We both had the best time of our lives and now do this regularly. He also helps me stretch my ass as I'm working up to two fists.