if you reckon you can fill a bath with cum in three months.
Apparently it takes about 270 litres of water to fill an average bath
and the volume of ejaculate varies massively between 0.1 and 10ml
http://en.wikipedia.org/wiki/Ejaculation (not terribly safe for work, as I discovered).
At 10ml a shot that's 27,000 ejaculations. Over a month that's 900 wanks a day.
We might need an intervention.