Target the mother with a survey as a pretext for hitting on her. Lure her into the car and explain that she has less sex with her husband, making her aware of it and persuading her. If it's just the two of you, it might feel wrong, but wouldn't it be more fun with multiple people? Based on your own reasoning, head to a hotel with pairs of mom friends. The ultimate version of lewd 3P play. Series volume 6.
