Size 12, although a good size, is my limit. A girl would need to be very special in personality and services for me to book a size 14.
Personal pref is for 6, 8 and 10s. Nothing better giving it to a size 6/8 girl in mish knowing you are deep in her, pubic bones grinding, with no bouncy flab. Even better if they take it in the ass. Yeah Baby!