Sink Dipping

a) When removing a plug from a sink full of water, a gentleman places his genitles into the downward spiral of water creating a vacuum around his penis causing him to shoot his load.
b) To take a naked female bend her over and dip her head into the sink whilst taking her from behind. Regular dipping intervals of 5 seconds in 5 seconds out should be used to help with timing and not to cause distress to the female.