Alina Percea, 18, from Caracal in Olt county, has posted her ad on German site www.gesext.de which specialises in dating and erotic auctions.
In her ad, she says: "I am a 108lbs, 5.67 ft tall, brown-eyed Romanian girl. I don't smoke and own a certificate from a gynaecologist which says I am a virgin. I want my first time to be special and not very abrupt.
"The winning bidder can spend a whole weekend with me provided he will cover all the expenses in case I need to travel or stay at a hotel."
Miss Percea says she decided to go ahead with the auction to raise enough money to pay for her studies - but she also hopes the winner might become her husband.
She says she is hoping to raise 50,000 euros but, with three days to go until the auction closes, bidding stands at 5,000 euros.