Me and my cousin at the age of 12 started secretly messing around with each other. The first year was simple things kissing and touching but after a year of secretly messing around she was straddling me one night grinding her pussy on my cock.. we didn’t plan to fuck we both agreed no penetration but that night she was so wet grinding back and forth my cock slipped right inside of her. We immediately stopped and locked eyes. We agreed we should stop. She then started to move her hips up my cock just about to slide out and she goes back down. I said what are you doing. She said she just wanted to feel one stroke. And then again and again both of us saying “we need to stop” as my cock is sliding in and out of her wet pussy.. fast and faster she kept going and I exploded what seemed like the biggest load of my life deep inside her pussy.. no condom .. instantly we were both terrified that she was going to get pregnant luckily she didn’t.. we were 13 then and have been secrectly fucking all the way up until last year when I got married we’re both 28 now