I think the firts few times with a new partner is kidna awkward, that plus i wouldn't trust a one night stand enough to not use a condom, cause if she's willing to trust that I don't have any VD's just cause i say it, she might have just taken the last guys word for it as well, and he may have lied.
my GF is on the pills, and i trust her, so thats not a problem. and sex withouit a condom is just a lot better, sorry safety adds, but thats what i think.
Knowing each other sexually also makes a huge difference, so if i was to sleep with someone else, it would prolly be nowhere near as good as it is with my girlfriend.
I don't belive in "the one" (not talking bout Neo) either, but i belive in "one at a time" (unless ofc my girlfriend wanted a 3some, it would be different if we we're both participating.
I don't think i would be able to cope an open relationship witha girl i liked/loved, then it would have to be a bed-buddie kinda relationship based solely on sex in the first place.
And as for the hooker... I would feel like i've hit a new low if i ever paid for sex. thats mroe pityfull than a pity-fuck, which is bad enough, IMO.
I think hookers have every right to do what they want with their bodies, and hey, if i was single and some woman offered me money for sex i would prolly do it as well, but i would NEVER pay someone for sex, i would feel totally pathetic if i did so.