Ram it in as far as you want. I can take a cock much bigger than yours usually.
(it feels so good to get a blowjob after months of nobody touching your cock. It is so hard to not cum though. You can feel the cum building up and making its way up your cock, you plead with your body to hold it in for longer. You can't hold it in though and you starting cumming all over the boss. Months of spunk comes rushing out as you empty your balls)