Even though I'm not the one that gave you the stone (yeah)
On your days alone * I can make you moan
Ma$e isn’t the one who married her (gave her the stone/rock/ring), but on her days alone (away from her husband and presumably with Ma$e), he can make her moan.
An alternative explanation is partially the same as the above, Ma$e didn’t marry her, but instead of Ma$e physically hooking up with her, she could be self pleasuring herself (which is done ‘alone’), and the memories she has of Ma$e will make her moan.
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