Let me put it this way...
Is it ethical for a guy to take a girl on a series of dates for the purpose of taking her virginity, do so, and then cheat on her / ditch her afterwards? No, its downright immoral.
Now this doesn't make me a poster girl for feminism either. I am not Rosie the Riveter obviously. (If anything I am a post-feminist. Post-feminism believes in the value of choice.)
What I am being is practical for a young woman in my situation. I have almost zero job experience and my resume is mostly hobbies and volunteer work. I don't know anyone in Toronto who might give me a decent part time job. Its a stupid catch-22 situation where I can't find work without experience and I can't get experience without work.
So really this is a matter of necessity is the mother of all invention. I am driven by necessity and my thirst for a good education.
So lets weigh my pros and cons of this moral dilemma:
Cons: I stand a chance of losing some of my self-respect by selling my virginity for money.
Pros: Using that money I get to go to university, educate myself and over the longer term I will better myself and gain confidence in my abilities. Depending on what job occupation eventually go into I will then be able to give back to society.
I think the pros far outweigh the cons.
So I would argue that this is at least somewhat ethical. The ends justifies the means in this case. Its not like I am killing people for money, that would clearly be immoral and illegal. The only person who could be potentially harmed is myself (and perhaps the man donating to my university fund, ie. he loses some of his own self-respect, or worse he turns out to be married...)
FYI, I don't want to be a homewreaker so please be single.
Some people might accuse me of being a golddigger, but at least I am not lying and pretending to be something I am not. Yes, I am in this for the money and the education that money will bring me. I am not expecting my 'Prince Charming' to be anything more than an one night stand. Hopefully we will both leave with happy memories and I presume he will at least try to be gentle with me.
We could discuss the whole moral issue over dinner if you get the winning bid. Some place private, like maybe a Japanese restaurant with the little rooms.