you should add cock rings to restrict how much cum can be released this would enable the amount of cum slider
but you can also code in girls who will see it and feel cocky and demand you remove it some maybe going brain dead from being overinflated but others tapping out
if you have a knot it gets stuck untill your done and knocks them out as the pains to hard
but you can also buy a knot helper basicly a bar that helps you open them up declamp your knot from them if their getting hurt to much
maybe some of the girls also love being overinflated maxing them out makes them go from hateing the player to becoming lust driven these girls finding out you can overinflat them will demand it and maybe go wild and attack the player forcing us down and breeding us