Margarita and feeding..

Hi ladies! My LO is 11 days old. I'm EBF and my younger sister is in town visiting, were taking her out for some authentic Mexican this afternoon and I really want a margarita ! My question is what's the best plan, feed the baby right before, then have some pumped for after so I have a couple hours to digest it ? I just want one, been looking so forward to that one Rita! Thanks for any advice.