Some advice on maximizing your cum.

Try to delay cumming for as much as you can. Every now and then when I really wanna drown my wife I try to play around with her for hours. Two or three hours usually do the trick. Almost cumming but holding off. Sometimes stay pretty long on the edge of cumming but trying real hard not to go over the edge.

After torturing myself with the almost-cumming feeling and that I'm oozing precum like there's no tomorrow I'd aim for her face and then let the waterfall go. Last time my wife almost panicked thinking that she'd drown.

The cum is less thick but comes in high volume. The only catch is... how to get ur partner to play around with you for so long. Or u'll have to play with yourself. But really prolong it for 2 or 3 hours. Then see if u get an overflow too.

Good luck