Is it normal that i had seuxal relations with my cousins?

Ok so when I was 13, two of my cousins (females, both 12) came over to my place to play video games. While me and one of them were playing tekken on the ps2 the other one started snooping through my drawers and going through my underwear. She grabbed a pair of them (I wore tighty whities at the time) and was like "whoa that bulge is big as hell! lol" (i'm not lying here or trying to complement myself, I think I have a tiny dick...) This caught the attention of my other cousin and they both found it hilarious. So then they both started going through my stuff and found a porn mag I had stashed away. Being the young early pubescent and curious girls that they were, they went through it and laughed at stuff. then we started talking about masturbating and all that. they became curious about how guys do it, and curious about how big I was after seeing my underwear.. So I took my clothes off and masturbated for them. They both watched at first, and then asked if they could touch it. they took turns paying with it, feeling my balls, jerking it, smelling it, and they really got a kick out of it when I started having some precum.. so they licked it and they ended up sucking my dick. One of them would lick my balls while the other one sucked my shaft. 12 year old girls are terrible at fellatio, but it did the job. they made me come and they were really grossed out by it.. but curious enough to see what it tasted like. Looking back on it, I find that those events that transpired get me really hot now. But none of us have talked about what happened since then. I've fantasised about getting with them again and maybe taking it all the way. But I'm way too nervous that their opinions have changed since then.. especially since one of them is a mom now : / is this normal?