I melt in your mouth, not in your hand
This line is used when you're so busy enjoying the action that you forget to hold on to stuff.
'I melt in your mouth, not in your hand', said after my girlfriend took my phone and used it to give me a head job.
'I melt in your mouth, not in your hand', said during a group session where I forgot my drink.
'I melt in your mouth, not in your hand', said after I dropped my wallet on my face during a head job.
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