Is it normal that i did sexual stuff with my cousin?

So when I was like 11 and my cousin was 12 we had swimming lessons together and after words we would shower together (naked of course) and we got to talking about our penis's one day and were playing with ourselves as we spoke and eventually we started to jack each other off and one day we ended up putting them in each other's butts and doing a few pumps then we would switch over and over again and I put his dick in my mouth for like 2 seconds and that was the end of the anal and blowjob and after that we just jacked each other off for like 2 more weeks and we both loved it and I would do it again if I could but I wanna actually suck his dick tell he climax's and I would try the anal again too!