If "magic" [ the sarcasm on his tone is not to be missed, thank you ] weren't disallowed here, I would assume they were an experiment gone wrong.

[ they obviously aren't, but the sight gave him something of an uneasy . . . hesitance, and roy turns slightly to collect one of the drinks, eyeing it for a long moment before glancing at riza, arching his eyebrows. ]

Am I going first? [ but before riza can respond, roy takes half a sip of the drink, experimentally allowing it to roll around his tongue before swallowing. and there's a pause, before he wrinkles his nose slightly. ] It doesn't taste poisonous. Sharp and bitter, though.