I have been referred a new friend by other friends and have accepted cash to show their appreciation. More than once or twice.
In my mind, this is different than money for sex. However, I know there are many who would disagree.
Xuani, says "Think long and hard before you cross this line, because once crossed there is no returning. I would agree, however at the same time I have no regrets and would do the same thing again the next time through life.