I seduced my friends brother

I (m 18) have been friends with the girl in question for years and I always found her older brother really really attractive. Came back to stay at my friends house after a night out and it was just me, my friend and her brother. My friend falls asleep basically instantly in her room but I stayed downstairs with her brother chatting for a bit. I was really drunk and feeling confident so I pulled my shorts up and letting him get a good view of my thighs, he starts touching them and we kiss and get hard not long after. When we went to his room I sucked on him before he fucked me and we cuddled for a bit wanking each other off slowly. Since then we've been hooking up a lot usually at my place when my parents are out or in his car