Your Sister-In-Law has been staying over the last few weeks; and while you have noticed she has been more flirty than usual, you brush it off...that is until you find her in your bedroom where she approaches you, telling you what she really wants...your cock. She knows that you have been trying for a baby with her sister, with not luck; and she knows how badly you want to fill a fertile pussy and she's willing to offer her's. Your Sister-In-Law knows shes tighter and naughtier than her sister and once your cum starts dripping out of her pussy you find out she's right, and you can't wait to see a positive pregnancy test from her.