I don't have tons of experiences but the hottest one was with a 19yo son who was totally into this lean daddy fucking him really passionately.
So i took him in this position
View media item 1046873 (right leg bent up) and fucked him straight down to his prostate with my thinnish and only average sized cock.
Suddenly, he started to make a lot of random movements with his asshole all around my cock as if he was giving me a massage all over my dick and i thought man if he continues this way, he will force ME to cum! But then he moaned really loud and long and i stopped my thrusts into him and pulled my fat n'hard head out.
When he turned around he was very embarrassed and told me that he had cummed and i saw all the young hot seed on his bed, pillow and belly hehehe...
I was so proud of my average fucker! So no, no need fot an alpha cock size to achieve this! It's all about
how you fuck guys, not about your dick size!