I melt in your mouth, not in your hand
This line is used when you're so busy getting head that you drop everything you're holding.
'I melt in your mouth, not in your hand', said after I dropped my drink on my face and got a head job.
'I melt in your mouth, not in your hand', said when I dropped my phone in my mouth and got a head job.
'I melt in your mouth, not in your hand', said when my keys fell out of my pocket and got a head job.