Haru took a bite, large enough to nip her fingers as he took the whole piece before he smiled at her, sure she just meant a bite of the piece, but he'd taken the whole piece.  But he would play too.  He'd take another small piece, rubbing it against her lips gently, he'd tease her with it a bit, pulling it back when she tried to bite it, just rubbing it against her lips a moment to coat her lips in the taste incase she licked her own lips to taste it.  Then he'd bring it to his lips holding it in his teeth as he brings it close to her, letting her take it to bring it into a kiss.