While it's certainly true dat some girls may
indeed be more-easily persuaded to "go bottoms up" --- i.e., give you some a*" --- after doing same with one or more "chalices of champagne",
said ladies' less-than-lucid state may reduce their attentiveness and/or sociability towards you during said
buns-submitting occasion, and so said "buzzed" intimacy may not really be so satisfying as you'd hoped.