Good Lord, phi68psi,
I, for one, am ECSTATIC that you are lubricating like crazy! It's a sure sign of health..and, if you were screwing without condoms, lucky lady for getting so much wetting juice for free! Particularly if you're circumcized, the extra lubrication does nothing but good, good, good.
Now to the reality of things: There are no "precautions" to take. The only such thing would be if you didn't get it up at all, and that would defeat the whole purpose. Now, I will say this: some women are very put off by pre-cum. Dunno if it's the "fastidious gene" operating in the back of their minds, or they just get grossed out. Also, remember that you two are not madly in love - you're just trying to make mad love. When two people meet in an intimate situation, despite their best intentions, they may not like TMI [in this case Too Much Intimacy, LOL] after all.
All of this is highly individual. I must shamefacedly admit that if I have really nice sheets, I don't like ANY spots on them, whether they are left there by me, The Saint or anything or anyone else. But then again, why would a provider haul out the Frette 600-counts if she were really concerned with having a pristine bed?
So here, I'd have to say that yes, she was bothered and possibly also CONCERNED with the extra fluid. Yes, pre-ejaculate has been known to harbor HIV and other assortments of STDs. And, in this type of sexual roulette, no one is safe. So I'd say keep pre-squirting [I just love the whole concept, in fantasy anyway] but know that there are just some women who don't appreciate it in reality as much as they do in fantasy.
Kleenex, anyone,
the Love Goddess