naw, its a two way street, both parties know what it is and what they are entailing...or they should anyway. 

The real question would be, do you need more than 2 hours to have an emotionnal connection with someone.

no. i think it's much better if there are "feelings" for the person you have sex with but having sex with someone you met on a party and did maybe talk an hour with is also great.

the worst sex is obviously the sex you have to pay for. 

Emotional connection???
What the hell kind of hippie nonsense is that?

To answer the question, NO! Of course not.

Guys feeling used in a heterosexual encounter? Are you guys for real?

Absolutely not. Some of the best sex I've had has been with perfect strangers. I mean don't get me wrong, it's beautiful when you have a connection with someone, and it's really passionate. But at the same time there's also something really exciting about just spending one or two nights with someone, going absolutely nuts and then never seeing each other again.

I wouldn't say I prefer one over the other tbh, and I do like being in a committed relationship when I find the right person, but as far as the sex goes it's just completely different and there's things to love about it in both instances.

Depends. If I want to have sex more then once, I need to know her a bit. If it's just a 1 night stand, I don't care. However sex with a girlfriend is much better then a 1 night stand because generally the girl feels more comfortable with you, which leads to better performance, and because she knows you, she knows what you like, and you know what she likes (making her moan more).

So my anwer is yes and no.

after one drink im ready

If I know the person well enough to already have sex with her then I already have an emotional connection with them (Though it may be unconscious). I choose not to just get laid every night due to my fear of STDs, and getting in with the wrong crowd.

yes