Absolutely. That's how we always get the ball rolling.
We do this with a guy we know and we have nice routine. When we do this it's on a Friday after work. We line it up a day or two prior. He's very reliable and always on time. When we get home from work and we know he'll be joining us we just kick back and watch the news on TV. We wash up a few before he arrives. He always dresses nice, kaki pants, button shirt, he's clean and smells good. Wife likes to stay in her work clothes, slacks or skirt, nice blouse and modest heels or a dress and heels.
He shows up, we have a glass of something and sometimes a shot of whatever. Some conversation how was work, etc while we sip on whatever.
Her thing is while we're in the kitchen sipping and catching up she likes to unbutton her blouse and take her bra off then sometimes buttons one or two buttons or not. If she has a skirt or dress she takes off her underpants. It's sexy as hell but it's all pretty casual. She thinks it's sexy and that's what makes it fun.
During our chit chat she will kiss one of us then the other, she loves going back and forth kissing us. We start to fondle her tits and sometimes her pussy for a few. They go up to our bedroom while I clean up. After maybe 5 minutes I go up, it takes the who starts awkwardness away. They are usually naked and either making out or oral is happening.
So yes alcohol always helps get it going.