Exodus 22:15

If a man seduce a virgin unbetrothed, and have criminal conduct with her, endowing, he shall endow her to be his wife.

AND IF A MAN ‘Y’FATEH’ — “speaks to her emotions [until she submits to him]. And so did Onkelos render it arei y’shadeil, the term shidul in Aramaic being like pitui [persuasion, seduction], in the Sacred Language. ‘MAHOR YIMHARENAH’ (HE SHALL SURELY PAY A DOWRY FOR HER) TO BE HIS WIFE — he shall assign her a marriage portion as is the manner of a man to his wife by writing her a kethubah (marriage contract), and he shall marry her.” Thus far is Rashi’s language.
But this is not correct, for the term pitui [does not mean “speaking to her feelings,” as Rashi put it], but winning over another person’s will by falsehood. A similar usage of the term is found in these verses: ‘yifteh l’vavchem’ (your heart will be deceived); ‘vayift’ (and he seduced) my heart secretly; if my heart ‘niftah’ (have been enticed) unto a woman., 9. This is why people whose minds are not adroit in discriminating matters, and whose hearts can be easily bent by a few words at the beginning of a discussion, are called p’ta’im (simple-minded ones), just as it is said, ‘peti’ (the simple-minded) believeth every word, and he who seduces a virgin in order to have sexual relations with her, bends her will to his desire by words of falsehood, and is therefore called m’fateh (seducer).
Onkelos, however, divided the term pitui into two meanings. Thus here he translated it: y’shadeil, which is an expression for cunning and effort that a person exercises towards another in order to do with him as he pleases, regardless of whether this effort is by means of words or deeds. Thus Onkelos translated: ‘vayei’aveik’ a man with him — v’ishtadeil (and a man ‘wrestled craftily’ with him). And Yonathan ben Uziel translated: ‘v’shovavticho’ (and I will turn thee about), and put hooks into thy jaws — ‘v’ishtadlinoch.’ And in the Targum of the Scroll of Ruth we find: Where hast thou gleaned to-day? ‘v’anah asit’ (and where wroughtest thou)? — ‘u’lan ishtadalt l’me’bad’ (and where have you ‘endeavored’ to work)? — And she said: The man’s name with whom ‘asithi’ (I wrought) to-day is Boaz, is translated in the Targum: ‘d’ishtadalith imei’ (with whom I ‘endeavored’). For all effort involving skill, with which a person attempts to achieve something, is called hishtadluth (endeavoring). Thus the Rabbis have said in the Mishnah: “And where there are no …

אשר לא ארשה, for if the girl had been betrothed to someone the penalty would be death by stoning as spelled out in Deuteronomy 22,24.

מהר ימהרנה כמהר הבתולות, 50 shekel, just like someone raping a virgin. The penalty money is to be given to the victim’s father as spelled out in Deuteronomy 22,29. Seduction results in the same compensation as rape.