Question? Thick/More cum load

Yesterday i fucked one of my friends, he is skinny, but has a long cock(going deep). We started playing around late night and i started to really tease him, by showing my pussy and fingering my asshole, he started to wank his cock in front of me, really hot. He penetrated my pussy and i told him to get off and then he penetrated me again, we did that a lot of times doing the night and when i could see he was about to cum, i turned him away, but when he finally did fuck me and he finish in my mouth, his cum was really thick i do mean really thick and it was good. was that because i made him stop from time to time, that made his cum thicker and he also came more. ?? just a question if anyone know. Because if it is then i know what to do from now on ;)