If you just want swallowing straight from the tap:
MIGD-380 scene 5 - 45 loads
MIGD-380 scene 8 - 45 loads
MIGD-380 scene 2 - 43 loads
MKMP-059 scene 4 - 41 loads
MDLD-359 scene 4 - 40 loads
DJE-056 scene 2 - 40 loads (this is the Mao Hamasaki scene you're referring to)
DJE-025 scene 7 - 37 loads
MDLD-435 scene 2 - 36 loads
DJE-049 scene 1 - 33 loads
I also prefer scenes where the girl swallows only one or two loads at a time (but swallows a lot overall).
The DJE-056 Mao scene is only 20 minutes long, so she swallows 40 loads in only that time (2 loads per minute).
For comparison, MDLD-359 has 40 loads in 27 minutes = 1.5 loads per minute (and features fucking). The MIGD-380 scene 8 has 36 minutes of swallowing 45 loads (1.25 loads per minute). The MKMP-059 scene is 45 minutes long but also has extensive fucking at the end, which slows down the swallow rate (0.9 loads per minute). DJE-025 is also 0.9 loads per minute.
So, in summary, I don't think there's any scene that features such a large amount of swallows so quickly as Mao Hamasaki's in DJE-056.
