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.

MarqFJA87 said:

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.

Will you make the next "swap" art ?

worldendDominator said:

Those are not their parents (at least not supposed to be), but a couple from another ad.

It seems the young student couple received advice from the married one.