I know genies are well-trodden as an erotic fantasy trope, but the way you approach your stories and the thread of humour running through them really makes all the difference. 'Alright you horny moron' had me laughing out loud :D
I wondered that, but you'd imagine any buttons/seams of the shirt would fail first and it would just fly open at the front instead of exploding into shreds. Then again... magic pentagram :p
I love the less-obvious touches, like the green panels and ribbed front on Mistress' bodysuit, and the way she's painted/covered her horns to look like Bowser's.
I think her head should be where her breasts are, and he should be holding her ankles instead of the tops of her calves. That would fix her arms, legs and lower torso seeming too long (she's not nearly as tall as him in earlier panels). Love the pose, otherwise.