As much as they advertize they do? I mean you'd think if you get drunk a lot how can you be able to have sex almost passing out?

Viagra.

For the 20 somethings I'm talking about?

im 21, in college, get quite drunk wednesday-saturday nights, get laid a fair amount. really depends on the SPAM, if everyone is getting drunk, of course dudes who get drunk will get laid.

""[Drink] provokes the desire, but it takes away the performance."
-from Macbeth

Alcohol has two main effects when taken in large quantities. It's a sedative, therefore depressing the hypothalamus which controls sexual arousal. Without these parts of the brain working properly you won't become as physically sexually aroused and will be less likely to maintain an erection and orgasm. This effects both men and women. In men there is an additional effect, the vasodilatory effect of alcohol can cause more blood to escape from the penis, meaning less likelihood of a full erection.

Ergo, Viagra. You can buy it online from places in India.

By fat ugly chicks who are equally opportunistic and desperate for a lay, sure.