For those who don't get the last panel, she's suggesting that since both of them lust after the opposite-sex parent of the other, they can "swap" to make up for each other's jealousy over each other.
For those who don't get the last panel, she's suggesting that since both of them lust after the opposite-sex parent of the other, they can "swap" to make up for each other's jealousy over each other.
Those are not their parents (at least not supposed to be), but a couple from another ad.