During my husband's absences, I, the mother, have had several physical relationships with my son. I think I must stop this someday, but when threatened by my son, I helplessly submit to him. Today, as instructed by my son, I drugged my husband to sleep, and as soon as I did, he eagerly took advantage of my husband's deep sleep to have intercourse with me. Although I try to refuse rationally, my son's skillful tongue and his robust penis, which is even more vigorous than my husband's, thrust into my deepest parts, causing me to lift my hips on my own to greedily seek pleasure. Repeatedly engaging in lewd licks and deepthroats, I was impregnated in intercourse right beside my husband.