1) Yes, but not between two rivals for a woman's affection. I prefer it when it's a close friend warning the love interest.
2) I can like it if it's done well.
3) BIG YES, this and many of the variations on it. I also like Pre-Climax Climax, and I'm not sure if there's a trope name for it, but sex where one of them is going to die soon, for whatever reason (but again, this has to be done very carefully, and I'm not interested unless there is some HARDCORE and genuine emotion going on).
no subject
2) I can like it if it's done well.
3) BIG YES, this and many of the variations on it. I also like Pre-Climax Climax, and I'm not sure if there's a trope name for it, but sex where one of them is going to die soon, for whatever reason (but again, this has to be done very carefully, and I'm not interested unless there is some HARDCORE and genuine emotion going on).