Nah, he goes for women's boobs
Wait, we are talking about the two headed snake, right?
Yup
Huh? When? In the manga he only aims for Tia's arm to make a contract, he loves wine
################################################ ################################################ ################################################ ################################################ ################################################
.
.
.
..
.
.
.
..
.
.
.
.
.
.
.
SPOILER
Cecil ends up talking to the prince Araith and Princess Lisolna and one of their plans to take down Lamtak is to make Princess lisolna the saintness in replace of Bertia. While it’s true that the snake loved Bertia’s sake (alcohol), turns out our sly snake is also fond of a lady’s chest There was a panel of futamata drooling at princess lisolna’s chest… Araith did not let that slide however and started choking it HAHA. Even cecil took pity and offered to have Kuro aid them by taming futamata (punishments lol)
That's exactly it :) I've also read the light novel (which is quite ahead) I'll provide a part from the light novel.
The direct paragraph is this (during the consultation between Araith & Lisolna, the beautiful woman in question is Lisolna, Aleis is Araith)
"Futamata, who'd been sulking after the sake was pulled away, perked up the moment he heard a beautiful woman would be serving him. He tried to dive straight into her chest, only to be promptly caught by Aleis. The girp was not what I'd call gentle."
— Cecil in his mind
LEAVE FUTAMATA ALONE! HE'S JUST A NOODLE!