I'm in the camp of "If it's (OOCly) consensual, if I don't see it then I don't care". And I'm of the opinion that 90% of the people who purposefully ERP in public (MT's happen, and worst I'll do to them is gently poke fun) are either non-RPers trolling or the people who are just around to cyber. I could be off on that percentage, but I like to believe that most actual RPers of any flavor -are- classy enough keep it private. I also draw the line between acceptable and time to take it to private at third base; holding hands, hugging, cuddling, making out, and above-the-waist-and-above-clothes touching is fine, but when clothes come off, hands disappear under hemlines, dry humping, or obvious pre-orgasmic moans start cropping up... yeah... I really don't want to see that.
I'm also firmly in the camp of sex being a normal part of life (on a purely biological sense, reproduction IS the goal of existence), so if it makes sense that my character would bump uglies with another person's character, then I'm fine with it as long as the other party 1) is someone I'm OOCly comfortable with and 2) respects my "fade to black" stipulation. Which might seem odd because I'm perfectly fine writing a smutty short story if I'm in a mind to do so, but for me there's just something REALLY uncomfortable with the idea of doing a collaboration with someone and in a chatlog.
I'm also firmly in the camp of sex being a normal part of life (on a purely biological sense, reproduction IS the goal of existence), so if it makes sense that my character would bump uglies with another person's character, then I'm fine with it as long as the other party 1) is someone I'm OOCly comfortable with and 2) respects my "fade to black" stipulation. Which might seem odd because I'm perfectly fine writing a smutty short story if I'm in a mind to do so, but for me there's just something REALLY uncomfortable with the idea of doing a collaboration with someone and in a chatlog.