dude i was in a VERY similar situation. i got really drunk with these two college chicks, and the one was engaged with a bf of 5 years. i ended up sleeping with her, not caring about it at the point and time. then when i woke up i realized what i did and i was scared that id have some mafia coming after me. god i dont want to even think about that again... anyhow, i would just take her for the sex, because if you have anyhting more, your going to start feeling emotions, which im sure you already do. the best bet would be either a booty call or get away.

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awannn